Triple point of water is_____________________?
A. 273°C at 6.11 Kpa
B. 273K at 61.6 Kpa
C. 273.16°C at 0.611 Kpa
D. 273.16K at 750 Kpa
Physics MCQs with Answers
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
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
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
In which process entropy remains constant________________?
A. isobaric
B. isochoric
C. adiabatic
D. isothermal
Adiabatic process is also called______________?
A. Heat exchange process
B. Heating process
C. Isentropic process
D. All of the above
The work done in the isochoric process is________________?
A. constant
B. variable
C. zero
D. depends on situation
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 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
Petrol engine is a________________?
A. C.I engine
B. SI engine
C. IC engine
D. all the above
