heat transfer #!#thermodynamics

The second law of thermodynamics deals with transfer of

A refrigerator transfers heat from the cold coling coils to the warm surroundings. Is it against the second law of thermodynamics? Justify your answer?

Introduction OF thermodynamics || Scope and Limitations OF Thermodynamics || System ||Surrounding || Boundary || Types OF Boundaries || Types OF System (Open,Closed,Isolated) || Modes OF Transfer OF Energy (Heat and Work) || Theoretical Questions OF thermodynamics

Asssertion: It is not possible for a system, unaided by an external agency to transfer heat from a body at lower temp. to another at a higher temp. Reason: It is not possible to violate the second law of thermodynamics.

In heat transfer, which method is based on gravitation