Engineering Thermodynamics
First law of thermodynamics

Enables to determine change in internal energy of the system
Provides relationship between heat, work and internal energy
Does not enable to determine change in entropy
All of these

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Engineering Thermodynamics
Which of the following statement is correct according to Clausis statement of second law of thermodynamics?

None of these
It is impossible to transfer heat from a body at a lower temperature to a body at a higher temperature, without the aid of an external source.
It is possible to transfer heat from a body at a lower temperature to a body at a higher temperature.
It is possible to transfer heat from a body at a lower temperature to a body at a higher temperature by using refrigeration cycle.

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