Chemical Engineering Thermodynamics
Compressibility factor (i.e., the ratio of actual volume of gas to the volume predicted by ideal gas law) for all gases are

Always greater than one
Same at the same reduced pressure
Both B & C
Same at the same reduced temperature

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Chemical Engineering Thermodynamics
Which of the following is an undesirable characteristics of a refrigerant ?

None of these
Its vapor pressure at the condenser temperature should be very high
It should be non-explosive
It should have a sub-atmospheric vapor pressure at the temperature in refrigerator coils

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