{"id":156,"date":"2019-10-02T20:35:50","date_gmt":"2019-10-02T15:35:50","guid":{"rendered":"https:\/\/talib.pk\/test-preparation\/?p=156"},"modified":"2020-09-15T16:04:36","modified_gmt":"2020-09-15T11:04:36","slug":"1st-year-physics-chapter-11-heat-and-thermodynamics-mcqs-with-answers","status":"publish","type":"post","link":"https:\/\/talib.pk\/test-preparation\/1st-year-physics-chapter-11-heat-and-thermodynamics-mcqs-with-answers\/","title":{"rendered":"1st Year Physics Chapter 11 Heat and Thermodynamics Mcqs With Answers"},"content":{"rendered":"<div class=\"28d95f43054b69d67289d6316e9506d8\" data-index=\"1\" style=\"float: none; margin:12px 0 12px 0; text-align:center;\">\n<script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<!-- talib-new -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-3438155045791616\"\r\n     data-ad-slot=\"6774242552\"\r\n     data-ad-format=\"auto\"><\/ins>\r\n<script>\r\n(adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p>This chapter is about Thermodynamics and you can get the 1st Year Physics Chapter 11 Heat and Thermodynamics Mcqs With Answers here. In this chapter, you will study Thermodynamics in which the conversion of heat into different forms of energy takes place. It describes the behavior of gases. The behavior of gases is well explained by the Kinetic Theory of Gases. Gases have a relation to Pressure and Temperature. Internal Energy is the sum of all the kinetic and potential energies of a substance. The First Law of Thermodynamics is very important to describe the relation between heat and work. There are two types of processes including Reversible and Irreversible processes takes place. A heat engine converts thermal energy into mechanical energy. Carnot engine is the base engine for all the other engines. Entropy is quite important in thermodynamics. So, these are the importance of this chapter. Have a look down for the MCQs.<\/p>\n<h2 style=\"text-align: center;\">1st Year Physics Chapter 11 Heat and Thermodynamics Mcqs With Answers<\/h2>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-378 aligncenter\" src=\"https:\/\/talib.pk\/test-preparation\/wp-content\/uploads\/2019\/10\/Physics-1st-Year-MCQs.jpg\" alt=\"1st Year Physics Chapter 11 Heat and Thermodynamics Mcqs With Answers\" width=\"300\" height=\"300\" srcset=\"https:\/\/talib.pk\/test-preparation\/wp-content\/uploads\/2019\/10\/Physics-1st-Year-MCQs.jpg 300w, https:\/\/talib.pk\/test-preparation\/wp-content\/uploads\/2019\/10\/Physics-1st-Year-MCQs-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<h3>KEY POINTS<\/h3>\n<div class=\"box info  alignleft\" style=\"width:100%\"><div class=\"box-inner-block\"><i class=\"fa tie-shortcode-boxicon\"><\/i>\n\t\t\t\n<div class=\"lightbulb tie-list-shortcode\">\n<ul>\n<li>Kinetic Theory of Gases<\/li>\n<li>Internal Energy<\/li>\n<li>Work and Heat<\/li>\n<li>The first law of Thermodynamics<\/li>\n<li>Molar Specific Heats of a Gas<\/li>\n<li>Reversible and Irreversible Processes<\/li>\n<li>The second law of Thermodynamics<\/li>\n<li>Carnot Engine and Carnot&#8217;s Theorem<\/li>\n<li>Petrol Engine<\/li>\n<li>Entropy<\/li>\n<\/ul>\n<\/div>\n\t\t\t<\/div><\/div>\n<p>&nbsp;<\/p>\n<p><strong><span style=\"color: #ff6600;\">Question.1<\/span>: At absolute temperature, the K.E of the molecules:<\/strong><\/p>\n<ul>\n<li>Become minimum<\/li>\n<li>Become maximum<\/li>\n<li>Become zero<\/li>\n<li>None of these<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Become zero<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.2<\/span>: Temperature is a property, which determines?<\/strong><\/p>\n<ul>\n<li>How much heat a body\u00a0 contains<\/li>\n<li>Whether a body will feel hot or cold to touch<\/li>\n<li>In which direction heat will flow between two systems<\/li>\n<li>How much total absolute energy a body has<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>In which direction heat will flow between two systems<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.3<\/span>: We prefer mercury\u00a0 as a thermometric substance because:<\/strong><\/p>\n<ul>\n<li>Over a wide range of temperature, its expansion is uniform<\/li>\n<li>It does not stick to the thermometer glass<\/li>\n<li>Its boiling point is high<\/li>\n<li>All of the above<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>All of the above<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.4<\/span>: The scales of temperature are based on two foxed points, which are<\/strong><\/p>\n<ul>\n<li>The temperature of water at 0<sup>0<\/sup>C and 100<sup>0<\/sup>C<\/li>\n<li>The temperature of melting ice and boiling water at atmospheric pressure<\/li>\n<li>The temperature of ice-cold and boiling water<\/li>\n<li>The temperature of frozen and boiling mercury<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>The temperature of melting ice and boiling water at atmospheric pressure<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.5<\/span>: What does V represent in the equation PV\/2=RT?<\/strong><\/p>\n<ul>\n<li>The volume of n mole of gas<\/li>\n<li>Mass of 4g of gas<\/li>\n<li>Mass of 2gm of gas<\/li>\n<li>The volume of 2 moles of gas<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Volume of 2 moles of gas<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.6<\/span>: In a clinical thermometer, the mercury in the capillary tube does not contract once removed from the patient because______.<\/strong><\/p>\n<ul>\n<li>Mercury takes a long time to contact<\/li>\n<li>The amount of mercury use is very small<\/li>\n<li>The capillary tube has a small constriction near the bulb<\/li>\n<li>The capillary tube is very narrow<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>The capillary tube has a small constriction near the bulb<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.7<\/span>: Normal human body temperature 98.6<sup>o<\/sup>F corresponds to:<\/strong><\/p>\n<ul>\n<li>37oC<\/li>\n<li>42oC<\/li>\n<li>55oC<\/li>\n<li>410oC<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>37oC<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.8<\/span>: The Fahrenheit and centigrade scales agree to:<\/strong><\/p>\n<ul>\n<li>-40<\/li>\n<li>542<\/li>\n<li>15.5<\/li>\n<li>-273<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>-40<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.9<\/span>: The kinetic energy of the molecular motion appears as_______.<\/strong><\/p>\n<ul>\n<li>P.E<\/li>\n<li>Heat<\/li>\n<li>Temperature<\/li>\n<li>None of these<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Temperature<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.10<\/span>: Heating of water under atmospheric pressure is an:<\/strong><\/p>\n<ul>\n<li>Adiabatic process<\/li>\n<li>Isothermal process<\/li>\n<li>Isochoric process<\/li>\n<li>Isobaric process<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Isobaric process<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.11<\/span>: According to pascal\u2019s law, the pressure of a gas in a vessel is?<\/strong><\/p>\n<ul>\n<li>Different in different directions<\/li>\n<li>Same in all direction<\/li>\n<li>Same only along with opposite directions<\/li>\n<li>Same only along with normal directions<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Same in all direction<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.12<\/span>: We can produce heat by?<\/strong><\/p>\n<ul>\n<li>Frictional process<\/li>\n<li>Chemical processes<\/li>\n<li>Electrical processes<\/li>\n<li>All of the above<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>All of the above<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.13<\/span>: Which one is true for internal energy?<\/strong><\/p>\n<ul>\n<li>It is the sum of all forms of molecular energies of a system<\/li>\n<li>It is a state function of a system<\/li>\n<li>It is proportional to transitional K.E of the molecules<\/li>\n<li>All are correct<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>All are correct<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.14<\/span>: At what temperature the adiabatic process is equivalent to the isothermal process?<\/strong><\/p>\n<ul>\n<li>O<sup>0<\/sup> C<\/li>\n<li>Zero Kelvin<\/li>\n<li>Critical temperature<\/li>\n<li>None of these<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Zero Kelvin<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.15<\/span>: Which one is not an example of the adiabatic process?<\/strong><\/p>\n<ul>\n<li>Rapid escape of air from a burst tyre<\/li>\n<li>The rapid expansion of air<\/li>\n<li>Conversion of water into ice in the refrigerator<\/li>\n<li>Cloud formation in the atmosphere<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Conversion of water into ice in the refrigerator<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.16<\/span>: The pressure exerted by a column of mercury 76cm high and at 0oc is called_______.<\/strong><\/p>\n<ul>\n<li>1 atmosphere<\/li>\n<li>1 newton per square meter<\/li>\n<li>1 pascal<\/li>\n<li>Data is insufficient<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>1 atmosphere<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.17<\/span>: Standard condition refers to gas at:<\/strong><\/p>\n<ul>\n<li>76cm,0oc<\/li>\n<li>760mm,273k<\/li>\n<li>1 atm,273k<\/li>\n<li>All of the above<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>All of the above<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.18<\/span>: If the volume of gas is held constant and we increase its temperature then?<\/strong><\/p>\n<ul>\n<li>Its pressure is constant<\/li>\n<li>Its pressure rises<\/li>\n<li>Its pressure falls<\/li>\n<li>All of the above<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Its pressure rises<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.19<\/span>: If the pressure of a given gas is held constant its density is inversely proportional to its absolute temperature. It is the statement of?<\/strong><\/p>\n<ul>\n<li>Boyle&#8217;s law<\/li>\n<li>Charle\u2019s law<\/li>\n<li>Ideal gas law<\/li>\n<li>Avagadro\u2019s law<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Charle\u2019s law<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.20<\/span>: Boyle&#8217;s law holds for ideal gases in______.<\/strong><\/p>\n<ul>\n<li>Isochoric process<\/li>\n<li>Isobaric process<\/li>\n<li>Isothermal process<\/li>\n<li>Adiabatic process<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Isothermal process<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.21<\/span>: For a gas obeying Boyle&#8217;s law, if the pressure is doubled, the volume becomes:<\/strong><\/p>\n<ul>\n<li>Double<\/li>\n<li>One half<\/li>\n<li>Four times<\/li>\n<li>One of the fourth<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>One half<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.22<\/span>: During which process the volume of the system remains constant______.<\/strong><\/p>\n<ul>\n<li>Isothermal<\/li>\n<li>Isobaric<\/li>\n<li>Isochoric<\/li>\n<li>Adiabatic<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Isochoric<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.23<\/span>: Which of the following properties of molecules of a gas is the same for all gases at a particular temperature?<\/strong><\/p>\n<ul>\n<li>Momentum<\/li>\n<li>Mass<\/li>\n<li>Velocity<\/li>\n<li>Kinetic energy<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Kinetic energy<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.24<\/span>: In which process entropy remains constant?<\/strong><\/p>\n<ul>\n<li>Isobaric<\/li>\n<li>Isochoric<\/li>\n<li>Adiabatic<\/li>\n<li><span style=\"color: #333300;\">Isothermal<\/span><\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Adiabatic<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.25<\/span>: Which statement of the second law of thermodynamics is based on a heat engine?<\/strong><\/p>\n<ul>\n<li>Clausius statement<\/li>\n<li>Kelvin statement<\/li>\n<li>Carnot statement<\/li>\n<li>Boyles statement<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Carnot statement<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.26<\/span>: Which quantity is not a thermodynamic state function?<\/strong><\/p>\n<ul>\n<li>Internal energy<\/li>\n<li>Heat energy<\/li>\n<li>Pressure<\/li>\n<li>Volume<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Heat energy<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.27<\/span>: The value of y for diatomic gas is:<\/strong><\/p>\n<ul>\n<li>1.67<\/li>\n<li>1.4<\/li>\n<li>1.3<\/li>\n<li>None<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>1.4<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.28<\/span>: The work done in the isochoric process is_____.<\/strong><\/p>\n<ul>\n<li>Constant<\/li>\n<li>Variable<\/li>\n<li>Zero<\/li>\n<li>Depends on the situation<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Zero<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.29<\/span>: In the successful operation of the heat engine which condition should be met.<\/strong><\/p>\n<ul>\n<li>Cyclic process<\/li>\n<li>Operated at a certain temperature difference<\/li>\n<li>Both a and b<\/li>\n<li>Not described<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Both a and b<\/strong>\n\t\t\t<\/div><\/div>\n<p><strong><span style=\"color: #ff6600;\">Question.30<\/span>: The performance of a refrigerator is described as by_______.<\/strong><\/p>\n<ul>\n<li>Efficiency<\/li>\n<li>Coefficient of performance<\/li>\n<li>Both a and b<\/li>\n<li>Not described<\/li>\n<\/ul>\n<div class=\"clear\"><\/div><div class=\"toggle close\"><h3 class=\"toggle-head-open\">Answer<i class=\"fa fa-angle-up\"><\/i><\/h3><h3 class=\"toggle-head-close\">Answer<i class=\"fa fa-angle-down\"><\/i><\/h3><div class=\"toggle-content\">\n\t\t\t<strong>Coefficient of performance<\/strong>\n\t\t\t<\/div><\/div>\n\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>This chapter is about Thermodynamics and you can get the 1st Year Physics Chapter 11 Heat and Thermodynamics Mcqs With Answers here. In this chapter, you will study Thermodynamics in which the conversion of heat into different forms of energy takes place. It describes the behavior of gases. The behavior of gases is well explained &hellip;<\/p>\n","protected":false},"author":2,"featured_media":378,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/posts\/156"}],"collection":[{"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/comments?post=156"}],"version-history":[{"count":0,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/posts\/156\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/media\/378"}],"wp:attachment":[{"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/media?parent=156"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/categories?post=156"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/talib.pk\/test-preparation\/wp-json\/wp\/v2\/tags?post=156"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}