In a working refrigerator, the value of COP is always__________________?
In a working refrigerator, the value of COP is always__________________?
A. 0
B. < 0
C. < 1
D. > 1
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As the entropy of the universe is increasing, day by day, the work producing capacity of a heat engine is_________________?
As the entropy of the universe is increasing, day by day, the work producing capacity of a heat engine is_________________?A. Not changed
B. Decreasing
C. Increasing
D. Data sufficient, can’t be predictedJoule-Thomson experiment is__________________?
Joule-Thomson experiment is__________________?A. Isobaric
B. Adiabatic
C. Isenthalpic
D. Both B. & C.The unit of fugacity is the same as that of the_________________?
The unit of fugacity is the same as that of the_________________?A. Pressure
B. Temperature
C. Volume
D. Molar concentrationWork done in an adiabatic process between two states depends on the__________________?
Work done in an adiabatic process between two states depends on the__________________?A. Rate of heat transmission
B. Initial state only
C. End states only
D. None of theseA two stage compressor is used to compress an ideal gas. The gas is cooled to the initial temperature after each stage. The intermediate pressure for the minimum total work requirement should be equal to the _____________ mean of P1 and P2.(where, P1 and P2 are initial and final pressures respectively) ?
A two stage compressor is used to compress an ideal gas. The gas is cooled to the initial temperature after each stage. The intermediate pressure for the minimum total work requirement should be equal to the _____________ mean of P1 and P2.(where, P1 and P2 are initial and final pressures respectively) ?A. Logarithmic
B. Arithmetic
C. Geometric
D. HarmonicWhich of the following is an extensive property of a system ?
Which of the following is an extensive property of a system ?A. Heat capacity
B. Molal heat capacity
C. Pressure
D. Concentration