Which is not constant for an ideal gas ?
Which is not constant for an ideal gas ?
A. (∂P/∂V)T
B. (∂V/∂T)P
C. (∂P/∂V)V
D. All (A), B. & (C)
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High _____________ is an undesirable property for a good refrigerant?
High _____________ is an undesirable property for a good refrigerant?A. Specific heat
B. Latent heat of vaporisation
C. Viscosity
D. Specific vapor volumeAfter throttling, gas temperature___________________?
After throttling, gas temperature___________________?A. Decreases
B. Increases
C. Remain same
D. May increase or decrease; depends on the nature of the gasNo work is done by the system, when a reaction occurs at constant__________________?
No work is done by the system, when a reaction occurs at constant__________________?A. Volume
B. Temperature
C. Pressure
D. None of theseWhat is the number of degree of freedom for a system of two miscible non-reacting species in vapor-liquid equilibrium forming an azeotrope ?
What is the number of degree of freedom for a system of two miscible non-reacting species in vapor-liquid equilibrium forming an azeotrope ?A. 0
B. 2
C. 1
D. 3“At the absolute zero temperature, the entropy of every perfectly crystalline substance becomes zero”. This follows from the __________________?
“At the absolute zero temperature, the entropy of every perfectly crystalline substance becomes zero”. This follows from the __________________?A. Third law of thermodynamics
B. Second law of thermodynamics
C. Nernst heat theorem
D. Maxwell’s relationsCOP of a refrigerator drawing 1 kW of power per ton of refrigeration is about____________________?
COP of a refrigerator drawing 1 kW of power per ton of refrigeration is about____________________?A. 0.5
B. 3.5
C. 4.5
D. 8.5