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

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Engineering Thermodynamics
Intensive property of a system is one whose value

Does not depend on the mass of the system, like temperature, pressure, etc.
Is dependent on the path followed and not on the state
Is not dependent on the path followed but on the state
Depends on the mass of the system, like volume

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