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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
The internal energy of a gas obeying P (V - b) RT (where, b is a positive constant and has a constant Cv), depends upon its

Volume
Temperature
Pressure
All of these

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Chemical Engineering Thermodynamics
Out of the following refrigeration cycles, which one has maximum COP?

Ordinary vapor compression cycle
Vapor compression with a reversible expansion engine
Carnot cycle
Air cycle

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Chemical Engineering Thermodynamics
y = specific heat ratio of an ideal gas is equal to

1 + (R/CV)
Cp/(CP-R)
Cp/Cv
All of these

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Chemical Engineering Thermodynamics
Entropy of the system decreases, when

Water is converted into ice
Both B & C
A gas expands spontaneously from high pressure to low pressure
Snow melts into water

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Chemical Engineering Thermodynamics
Work done may be calculated by the expression ∫p dA for __________ processes.

Both A and B
Non-flow reversible
Adiabatic
Neither A nor B

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Chemical Engineering Thermodynamics
In a P-V diagram (for an ideal gas), an isothermal curve will coincide withan adiabatic curve (through a point), when

Cp < Cv
Cp = Cv
Cp > Cv
Cp ≥ Cv

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