[{"id":211292,"question":"Which of the following is an example of irreversible process.","choices":[{"text":"Melting of ice","value":"A"},{"text":"Work done against friction","value":"B"},{"text":"Pettier heating and cooling","value":"C"},{"text":"All isothermal and adiabatic changes","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":211291,"question":"Heat Carnot be transferred from a colder to a hotter region unless work is done This is the statement of.","choices":[{"text":"Firs law of thermodynamics","value":"A"},{"text":"Second law of thermodynamics","value":"B"},{"text":"Third law of thermodynamics","value":"C"},{"text":"Zeroth law of thermodynamcis","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":211290,"question":"Which of the following should not change in an Isothermal process.","choices":[{"text":"Volume","value":"A"},{"text":"Pressure","value":"B"},{"text":"Temperature","value":"C"},{"text":"All of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":211289,"question":"In order of a cyclic heat engine operating between two heat reservoirs to be as efficient as a Carnot engine. It must be.","choices":[{"text":"A gas engine","value":"A"},{"text":"Adiabatic","value":"B"},{"text":"Reversible","value":"C"},{"text":"A refrigerator","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":211288,"question":"The heat accepted and rejected by a Carnot engine operating between two heat reservoirs defines.","choices":[{"text":"The efficiency of the working substance of the engine","value":"A"},{"text":"the ideal gas scale of temperature","value":"B"},{"text":"The ratio of the absolute temperature of the reservoirs","value":"C"},{"text":"The thermal capacity of the working substance","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":211287,"question":"Which of the following phenomenon gives evidence of the molecular structure of mater","choices":[{"text":"Evaporation","value":"A"},{"text":"Diffusion","value":"B"},{"text":"Brownian movement","value":"C"},{"text":"All of the above","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":211286,"question":"Difference between the molar heat capacity constant pressure and that a constant volume is equal to","choices":[{"text":"Root mean square velocity","value":"A"},{"text":"Mean free path","value":"B"},{"text":"Boltzmann's constant","value":"C"},{"text":"Universal gas constant","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":211285,"question":"The internal inertia of a thermodynamics system is known as.","choices":[{"text":"Enthalpy","value":"A"},{"text":"Entropy","value":"B"},{"text":"Isotherm","value":"C"},{"text":"Adiabatic","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":211284,"question":"A sample of an ideal gas may i) energy adiabatically, or ii) Expand isothermally. the net flow of heat into the gas from the exterior is.","choices":[{"text":"Positive is each case","value":"A"},{"text":"Negative for i) and positive for ii)","value":"B"},{"text":"Zero for i) and positive for ii)","value":"C"},{"text":"Positive for i) and negative for ii)","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":211283,"question":"The mechanical equivalent of heat is.","choices":[{"text":"Physical quantity","value":"A"},{"text":"Constant","value":"B"},{"text":"Conversion factor","value":"C"},{"text":"Zero","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":211282,"question":"Which quantity is common for systems in thermal equilibrium.","choices":[{"text":"Heat","value":"A"},{"text":"Temperature","value":"B"},{"text":"Momentum","value":"C"},{"text":"Specific heat","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":211281,"question":"The temperature which is the same in <sup>o</sup>C and <sup>o</sup>F is.","choices":[{"text":"-20","value":"A"},{"text":"-40","value":"B"},{"text":"20","value":"C"},{"text":"40","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":211280,"question":"What happens to internal energy of a piece of lead when hammered.","choices":[{"text":"Increases","value":"A"},{"text":"Decreases","value":"B"},{"text":"Remains unchanged","value":"C"},{"text":"Becomes zero","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":211279,"question":"The internal energy of an isolated system","choices":[{"text":"Is zero","value":"A"},{"text":"Keeps on changing","value":"B"},{"text":"Remains constant","value":"C"},{"text":"Cannot be judged","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":211278,"question":"What is the necessary condition for Boyle's law to hold good.","choices":[{"text":"Isothermal","value":"A"},{"text":"Adiabatic","value":"B"},{"text":"Isobaric","value":"C"},{"text":"Isochoric","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":211277,"question":"Which of the following has maximum specific heat.","choices":[{"text":"Glass","value":"A"},{"text":"Iron","value":"B"},{"text":"Brass","value":"C"},{"text":"Lead","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":211276,"question":"For which process is the relation Delta Q = Delta V true.","choices":[{"text":"Isothermal","value":"A"},{"text":"Adiabatic","value":"B"},{"text":"isobaric","value":"C"},{"text":"Isochoric","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":211275,"question":"In free expansion of a gas. the internal energy of the system.","choices":[{"text":"Increases","value":"A"},{"text":"Descreases","value":"B"},{"text":"Remain unchanged","value":"C"},{"text":"Becomes infinite","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":211274,"question":"In onw cycle of a steam engine there are how many dead centres.","choices":[{"text":"1","value":"A"},{"text":"2","value":"B"},{"text":"3","value":"C"},{"text":"zero","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":211273,"question":"Change in which parameter determines the work done by a gas during adiabatic prcoess.","choices":[{"text":"volume","value":"A"},{"text":"Pressure","value":"B"},{"text":"Temperature","value":"C"},{"text":"Weight","value":"D"},{"value":"E"}],"correctAnswer":3}]