"Heat cannot be itself flow from a body at lower temperature to a body at higher

Question

"Heat cannot by itself flow from a body at lower temperature to a body at higher temperature" is a statement or consequence of
(a) second law of thermodynamics
(b) conservation of momentum
(c) conservation of mass
(d) first law of thermodynamics.

Answer 1

Correct Option (a) second law of thermodynamics

Explanation:

Heat cannot flow itself from a body at lower temperature to a body at higher temperature. This corresponds to second law of thermodynamics.