[{"id":163088,"question":"The value of universal gas constant R is:","choices":[{"text":"8.314 J/K mole K","value":"A"},{"text":"8314 J/ mole K","value":"B"},{"text":"8.314 J/ mole K","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":163087,"question":"While dealing with the processes i thermodynamics, the working substances is usually:","choices":[{"text":"Oxygen gas","value":"A"},{"text":"Hydrogen gas","value":"B"},{"text":"Ideal gas","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":156786,"question":"If P is the pressure and V is the volume, Then PV will represent:","choices":[{"text":"Power","value":"A"},{"text":"Work","value":"B"},{"text":"Force","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":156783,"question":"Tick which of the following is not state variable:","choices":[{"text":"Heat energy","value":"A"},{"text":"Pressure","value":"B"},{"text":"Entropy","value":"C"},{"text":"Volume","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":156782,"question":"In which process, the change in internal energy of the system of zero:","choices":[{"text":"Isochoric process","value":"A"},{"text":"isobaric process","value":"B"},{"text":"Adiabatic process","value":"C"},{"text":"Isothermal process","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":156775,"question":"First law of thermodynamics is merely a statement of law of conversation of:","choices":[{"text":"Energy","value":"A"},{"text":"Angular momentum","value":"B"},{"text":"Change","value":"C"},{"text":"Linear momentum","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":156772,"question":"In thermodynamics, the change in internal energy depends upon:","choices":[{"text":"The path taken between initial and final states","value":"A"},{"text":"The initial state only","value":"B"},{"text":"The final state only","value":"C"},{"text":"Initial and final states","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":156768,"question":"When a gas is compressed:","choices":[{"text":"Its internal energy decreases","value":"A"},{"text":"Its temperature decreases","value":"B"},{"text":"Its temperature increases","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":156764,"question":"The ideal gas obey gas law at:","choices":[{"text":"Low tempratures and high pressures","value":"A"},{"text":"High temperatures and low pressures","value":"B"},{"text":"All temperatures and pressures","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":156763,"question":"Thermal radiations are a type of:","choices":[{"text":"Mechanical waves","value":"A"},{"text":"Electromagnetic waves","value":"B"},{"text":"Alpha rays","value":"C"},{"text":"Electrons","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":156761,"question":"For a gas obeying Boyle's law, if the pressure is doubled the volume becomes:","choices":[{"text":"One half","value":"A"},{"text":"Double","value":"B"},{"text":"Four times","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":156760,"question":"The temperature at which all the gases become liquid is called:","choices":[{"text":"273 K","value":"A"},{"text":"-273 K","value":"B"},{"text":"Absolute Zero","value":"C"},{"text":"Both (B) and (C)","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":156759,"question":"The number of molecules in one mole of gas is equal to:","choices":[{"text":"Avogadro number N<sub>A</sub>","value":"A"},{"text":"Gas constant R","value":"B"},{"text":"Boltzmann constant k","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":156758,"question":"Brownian motion confirms the truth of :","choices":[{"text":"Wave theory of light","value":"A"},{"text":"Boyle's law","value":"B"},{"text":"Kinetic theory of gases","value":"C"},{"text":"Adiabatic process","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":156756,"question":"According to boyle's law, volume of a given mass of a gas is","choices":[{"text":"Inversely proportional mass at constant pressure","value":"A"},{"text":"Directly proportional to pressure at constant temprerature","value":"B"},{"text":"Inversely proportional pressure at constant temprature","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":156751,"question":"The pressure exerted on the walls on the vessel by gas molecules is defined as:","choices":[{"text":"Force per unit volume","value":"A"},{"text":"Energy per unit area","value":"B"},{"text":"mass per unit volume","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":156749,"question":"Change in momentum per second is:","choices":[{"text":"Product force and time","value":"A"},{"text":"Product of pressure and area","value":"B"},{"text":"Ratio of pressure and area","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":154034,"question":"The rate of change of momentum of a molecule is equal to:","choices":[{"text":"Pressure","value":"A"},{"text":"Work","value":"B"},{"text":"Density","value":"C"},{"text":"Force","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":154033,"question":"If a molecule with momentum mv strikes a wall and rebound then the change in momentum will be:","choices":[{"text":"-2 mv","value":"A"},{"text":"Zero","value":"B"},{"text":"2 mv","value":"C"},{"text":"mv","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":154032,"question":"Pressure may be defined as_____per second per unit area:","choices":[{"text":"Change in force","value":"A"},{"text":"Change in momentum","value":"B"},{"text":"Change in energy","value":"C"},{"text":"Work done","value":"D"},{"value":"E"}],"correctAnswer":2}]