Chemical Engineering Thermodynamics
An ideal liquid refrigerant should

Not have a subatmospheric vapour pressure at the temperature in the refrigerator coils
Not have unduly high vapour pressure at the condenser temperature
Both A and B
Have low specific heat

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Chemical Engineering Thermodynamics
The third law of thermodynamics states that the

Gases having same reduced properties behave similarly
Heat capacity of a crystalline solid is zero at absolute zero temperature
None of these
Heat transfer from low temperature to high temperature source is not possible without external work

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