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We consider a thermodynamic system. If D...

We consider a thermodynamic system. If `DeltaU` represents the increase in its internal energy and W the work done by the system, which of the following statements is true?

A

`Delta U = -W` in adiabatic process

B

`Delta U = W` in an isothermal process

C

`Delta U = -W` in an isothermal process

D

`Delta U = W` in an adiabatic process

Text Solution

Verified by Experts

The correct Answer is:
A
According to the first law of thermodynamics
`DeltaQ = Delta U +DeltaW`
In adiabatic process `Delta Q = 0`, hence `dU=-dW`.
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