Question

What First law of thermodynamics states ?​

Answer 1

Answer:

The first law of thermodynamics is a version of the law of conservation of energy, adapted for thermodynamic systems. The law of conservation of energy states that the total energy of an isolated system is constant; energy can be transformed from one form to another, but can be neither created nor destroyed.

Answer 2

First law of thermodynamics

According to this law,

Energy of an isolated system is always constant.

It can neither be created nor be destroyed..

Energy can be transferred from one form to another.

Expression for this law is given by:-

∆U = Q - W

where,

∆U = Change in internal energy

Q = Heat added

W = work done by the system

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