Chemical Engineering Thermodynamics
The second law of thermodynamics states that

None of these
The total energy of system and surrounding remains the same
It is not possible to transfer heat from a lower temperature to a higher temperature
The energy change of a system undergoing any reversible process is zero

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Chemical Engineering Thermodynamics
Which of the following will increase the volume of a real gas by four times ?

Reducing the temperature to half and doubling the pressure
Reducing pressure to one fourth at constant temperature
Doubling the absolute temperature as well as pressure of the gas
Reducing temperature to one fourth at constant pressure

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