Question

state second law of thermodynamics

Answer 1

According to the second law of thermodynamics ,when energy is put to work ,a part of it is always converted in unuseful form of as heat mainly,due to friction and radiation.

Answer 2

2nd lawa of thermodynamics to remove the limitation of flot

It is stated in many forms but the two mains are

1) Kelvin statement applicable to a heat engine .

Efficiency of a heat can never be 100%

2) clausise statement applicable to a refrigerator ..

Coefficient of performance can never be infinite..

*Heat by itself can't pass from a cold body to a hot body*