Chemical Engineering Thermodynamics
The main feature of Carnot refrigeration cycle is that, it

Does not need the addition of external work for its functioning
Accomplishes the reverse effect of the heat engine
Transfers heat from high temperature to low temperature
None of these

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Chemical Engineering Thermodynamics
Which one is true for a throttling process?

The inversion temperature is different for different gases
The inversion temperature is same for all gases
A gas may have more than one inversion temperatures
The inversion temperature is the temperature at which Joule-Thomson co-efficient is infinity

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Chemical Engineering Thermodynamics
An irreversible process

Is an idealised visualisation of behaviour of a system
Yields an amount of work less than that of a reversible process
Yields the maximum amount of work
Is the analog of linear frictionless motion in machines

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