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

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.
None of these
It is possible to transfer heat from a body at a lower temperature to a body at a higher temperature by using refrigeration cycle.

ANSWER DOWNLOAD EXAMIANS APP

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

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
It is impossible to transfer heat from a body at a lower temperature to a higher temperature, without the aid of an external source

ANSWER DOWNLOAD EXAMIANS APP