Chemical Engineering Thermodynamics - Chemical Engineering Questions and Answers

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C_v for an ideal gas

does not depend upon temperature.

is independent of pressure only.

is independent of volume only.

is independent of both pressure and volume.

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The equation, C_p - C_v = R, is true for __________ gas.

any real

only ideal

both (b) and (c)

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In a homogeneous solution, the activity co-efficient of a component depends upon the

pressure

composition

temperature

all (a), (b) and (c)

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Pick out the wrong statement:

The expansion of a gas in vacuum is an irreversible process.

An isometric process is a constant pressure process.

Entropy change for a reversible adiabatic process is zero.

Free energy change for a spontaneous process is negative.

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With increase in compression ratio, the efficiency of the otto engine

increases

decreases

remains constant

increases linearly

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The chemical potential of any constituent of an ideal solution depends on the __________ of the solution.

temperature

pressure

composition

all (a), (b) and (c)