Question

"Heat cannot flow on its own without any aid from a body at lower temperature to another body at higher temperature" is a statement or consequence of

• A. Zeroth law of thermodynamics
• B. First law of thermodynamics
• C. Second law of thermodynamics
• D. Third law of thermodynamics

Answer 1

The correct option is C Second law of thermodynamics

Clausius statement of second law states that it is impossible for a self acting machine, unaided by any external agency, to transfer heat from a body at lower temperature to another body at higher temperature.