Question

Write the mathematical statement of first law of thermodynamics ?

Answer 1

Answer:

The first law of thermodynamics states that the change in internal energy of a system equals the net heat transfer into the system minus the net work done by the system. In equation form, the first law of thermodynamics is ΔU = Q − W. Here ΔU is the change in internal energy U of the system.

Answer 2

Answer:

the first law of thermodynamics is the version law of conservation of energy, adapted for thermodynamics processes, distinguished two kind of transfer of energy as heat and as thermodynamic work, and relating them to a function of body's state , called internal energy

Explanation:

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