Internal energy, work and heat First law of thermodynamics

First law of thermodynamics states that

State the first law of thermodynamics.

According to first law of thermodynamics,

The first law of thermodynamics confirms the law of

Assertion: In an isothermal proces, whole of heat energy supplied to the body id converted into work. Reason: According to first law of thermodynamics DeltaQ=DeltaU+PDeltaV

If DeltaQ and represent the heat supplied to the system and the work done on the system respectively, then the first law of thermodynamics can be written as