[{"id":211172,"question":"Which law states that a change in the internal energy of a closed thermodynamic system is equal to the difference between the heat supplied to the system and teh amount of work by the system on the surrounding.","choices":[{"text":"Zeroth law of thermodynamics","value":"A"},{"text":"First law of thermodynamics","value":"B"},{"text":"Second law of thermodynamics","value":"C"},{"text":"Third law of thermodynamics","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":211171,"question":"A heat engine with 100% efficiency would have to.","choices":[{"text":"Do no work","value":"A"},{"text":"Be at uniform temperature","value":"B"},{"text":"Use no heat","value":"C"},{"text":"Discharge of 0 <sup>o</sup>C","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":211170,"question":"The follow of heat from hot body to cold body is an example of","choices":[{"text":"Adiabatic process","value":"A"},{"text":"Isothermal process","value":"B"},{"text":"Reversible process","value":"C"},{"text":"Irreversible process","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":211169,"question":"By definition a gas is said to be have undergone adiabatic compressing when","choices":[{"text":"No heat exchange occurs between the gas and its surroundings","value":"A"},{"text":"The gas is compressed quickly","value":"B"},{"text":"The gas is compressed slowly","value":"C"},{"text":"The temperature of the gas remains constant","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":211168,"question":"A diatomic gas contains only","choices":[{"text":"Translational K.E.","value":"A"},{"text":"Rotational K.E.","value":"B"},{"text":"Vibrational K.E.","value":"C"},{"text":"All of these","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":211167,"question":"A frictionless heat engine can be 100% efficient only if its exhaust temperature is","choices":[{"text":"Equal to the input temperature","value":"A"},{"text":"Less than the input temperature","value":"B"},{"text":"0 <sup>o</sup>C","value":"C"},{"text":"0 K","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":211166,"question":"Let at constant temperature the pressure of an ideal gas be doubled so that the new volume is.","choices":[{"text":"Doubled the original volume","value":"A"},{"text":"Same as original volume","value":"B"},{"text":"Reduced to half the original volume","value":"C"},{"text":"Reduced to two times the original volume","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":211165,"question":"Which of the following is the ideal gas equation.","choices":[{"text":"PV -n RT","value":"A"},{"text":"P/V = n RT","value":"B"},{"text":"V/P = nR/T","value":"C"},{"text":"PV = T/nR","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":211164,"question":"Which of the following is heat transfer by means of the emission or absorption of electromagnetic radiation such as sunshine.","choices":[{"text":"Conduction or diffusion","value":"A"},{"text":"Convection","value":"B"},{"text":"Radiation","value":"C"},{"text":"Mass transfer","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":211163,"question":"Which is the heat transfer mode between an object and its environment due to circular fluid motion.","choices":[{"text":"Conduction","value":"A"},{"text":"Convection","value":"B"},{"text":"Radiation","value":"C"},{"text":"Mass transfer","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":211162,"question":"The transfer of thermal energy between regions of matter due to a temperature gradient is called.","choices":[{"text":"Conduction","value":"A"},{"text":"Radiation","value":"B"},{"text":"Convection","value":"C"},{"text":"Sublimation","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":211161,"question":"The temperature of 1 kg of hydrogen gas is the same as that of 1 kg of helium gas if.","choices":[{"text":"The gases have the same internal energy","value":"A"},{"text":"The gas molecules occupy equal volumes","value":"B"},{"text":"The gas molecules have the same root mean square speed","value":"C"},{"text":"The gas molecules have same mean translational K.E.","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":211160,"question":"The temperature of a certain substance in Celsius scale of temperature is 800 <sup>o</sup>C in Kelvin scale it is.","choices":[{"text":"173 K","value":"A"},{"text":"931 K","value":"B"},{"text":"1073 K","value":"C"},{"text":"1193 K","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":211159,"question":"The SI unit of heat capacity is.","choices":[{"text":"kg J","value":"A"},{"text":"Kg J-1","value":"B"},{"text":"J K-1","value":"C"},{"text":"Kg J-1 K-1","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":211158,"question":"One calorie equals to","choices":[{"text":"1.2 J","value":"A"},{"text":"2.2 J","value":"B"},{"text":"3.2 J","value":"C"},{"text":"4.2 J","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":211157,"question":"Which of the following is defined as the amount of heat required to raise the temperature of 1 g of water by 1 <sup>o</sup>C","choices":[{"text":"Joule","value":"A"},{"text":"BTO","value":"B"},{"text":"Electron volt","value":"C"},{"text":"Calorie","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":211156,"question":"Which law states that if two systems are in thermal equilibrium with a third system they are also in the thermal equilibrium with each other.","choices":[{"text":"Third law of thermodynamics","value":"A"},{"text":"Second law of thermodynamics","value":"B"},{"text":"First law of thermodynamics","value":"C"},{"text":"Zeroth law of thermodynamics","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":211155,"question":"Which of the following is the science of measuring the heat of chemical reactions or physical changes.","choices":[{"text":"Thermometry","value":"A"},{"text":"Calorimetry","value":"B"},{"text":"Telemetry","value":"C"},{"text":"Photometry","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":211154,"question":"An inflated tyre suddenly bursts As a result of this temperature of the surrounding","choices":[{"text":"Increases","value":"A"},{"text":"Descreases","value":"B"},{"text":"Remains constant","value":"C"},{"text":"May increase or decrease","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":211153,"question":"The actual gas can behave like an ideal gas at","choices":[{"text":"Low density and high pressure","value":"A"},{"text":"High density and high pressure","value":"B"},{"text":"Low density and low pressure","value":"C"},{"text":"High density and low pressure","value":"D"},{"value":"E"}],"correctAnswer":3}]