In which process entropy remains constant________________?
A. isobaric
B. isochoric
C. adiabatic
D. isothermal
Heat and Thermodynamics
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
Triple point of water is_____________________?
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
For a gas obeying Boyles law if the pressure is doubled the volume becomes________________?
For a gas obeying Boyles law if the pressure is doubled the volume becomes________________?
A. double
B. one half
C. four times
D. one fourth
The area enclosed by the curve ABCDA for a Carnot heat engine represents the work done by Carnot engine_______________?
The area enclosed by the curve ABCDA for a Carnot heat engine represents the work done by Carnot engine_______________?
A. at any instant
B. averagely
C. during its operation
D. during one cycle
At what temperature is the Fahrenheit scale reading equal to twice that of the Celsius scale?
At what temperature is the Fahrenheit scale reading equal to twice that of the Celsius scale?
A. 460°C
B. 280°C
C. 360°C
D. 160°C
Standard condition STP refer to a gas at ___________________?
Standard condition STP refer to a gas at ___________________?
A. 76cm 0°C
B. 760mm 273K
C. 1atm 273K
D. all of the above
Which one is true for internal energy ?
Which one is true for internal energy ?
A. It is sum of all forms of energies associated with molecules of a system
B. It is a state function of a system
C. It is proportional to transnational K.E of the molecules
D. All are correct