Engineering Thermodynamics
Energy can neither be created nor destroyed, but it can be transformed from one form to another. This statement is known as

Zeroth law of thermodynamics
Second law of thermodynamics
Kinetic theory of gases
First law of thermodynamics

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

It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source
There is a definite amount of mechanical energy, which can be obtained from a given quantity of heat energy
It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work
All of these

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