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If DeltaU and Delta W represent the incr...

If `DeltaU` and `Delta W` represent the increase in internal energy and work done by the system resectively in a thermodynamical process, which of the following is true?

A

`DeltaU=-DeltaW`, in an adiabatic process

B

`DeltaU=DeltaW`, in an isothermal process

C

`DeltaU=DeltaW`, in an adiabatic process

D

`DeltaU=-DeltaW`, in an isothermal process

Text Solution

Verified by Experts

The correct Answer is:
A
From the first law of thermodynamics
`Q=DeltaU+W`
For adiabatic process `Q = 0`
`implies DeltaU=-W`.
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