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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
Throttling (Joule-Thomson effect) process is a constant __________ process.

Entropy
None of these
Pressure
Enthalpy

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Chemical Engineering Thermodynamics
Free energy change of mixing two liquid substances is a function of the

Temperature only
All of these
Quantities of the constituents only
Concentration of the constituents only

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Chemical Engineering Thermodynamics
Joule-Thomson co-efficient depends on the

Both A & B
Neither A nor B
Temperature
Pressure

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Chemical Engineering Thermodynamics
Critical compressibility factor for all substances

Vary as square of the absolute temperature
Vary as square of the absolute pressure
Are more or less constant (vary from 0.2 to 0.3)
None of these

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Chemical Engineering Thermodynamics
Which is not constant for an ideal gas?

(∂V/∂T)P
(∂P/∂V)T
All of these
(∂P/∂V)V

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Chemical Engineering Thermodynamics
Out of the following refrigration cycles, which one has the minimum COP (Co-efficient of performance)?

Vapour compression with a reversible expansion engine
Carnot cycle
Air cycle
Ordinary vapour compression cycle

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