Which quantity is a state function_______________?
Which quantity is a state function_______________?
A. internal energy
B. heat supply
C. pressure
D. volume
Physics Mcqs
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Petrol engine is a________________?
Petrol engine is a________________?A. C.I engine
B. SI engine
C. IC engine
D. all the above -
The purpose of flywheel in the engines is________________?
The purpose of flywheel in the engines is________________?A. to smooth out the energy variation
B. to add more weight to engine to work it stable
C. to start engine
D. both A and B -
For the successful operation of Heat engine which condition should be met ?
For the successful operation of Heat engine which condition should be met ?A. cyclic process
B. operated at certain temperature difference
C. both A and B
D. none of these -
The work done in the isochoric process is________________?
The work done in the isochoric process is________________?A. constant
B. variable
C. zero
D. depends on situation -
Adiabatic process is also called______________?
Adiabatic process is also called______________?A. Heat exchange process
B. Heating process
C. Isentropic process
D. All of the above -
In which process entropy remains constant________________?
In which process entropy remains constant________________?A. isobaric
B. isochoric
C. adiabatic
D. isothermal -
Average translational kinetic energy per molecule of an ideal gas is given by_____________?
Average translational kinetic energy per molecule of an ideal gas is given by_____________?A. 3NaT/2R
B. 2NaT/3
C. 3RT/2Na
D. 3Na/2RT -
Boltzman constant K in terms of universal gas constant R and Avagadros number Na is give as_______________?
Boltzman constant K in terms of universal gas constant R and Avagadros number Na is give as_______________?A. K = RNa
B. K = R/Na
C. K = Na/Ra
D. K = nRNa -
Which of the following properties of molecules of a gas is same for all gases at particular temperature ?
Which of the following properties of molecules of a gas is same for all gases at particular temperature ?A. momentum
B. mass
C. velocity
D. kinetic energy