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A gas is expanded from volume V0 to 2V0...

A gas is expanded from volume `V_0` to `2V_0` under three different processes. Process 1 is isobaric, process 2 is isothermal and process 3 is adiabatic. Let `Delta U_1 , Delta U_2` and `Delta U_3` be the change in internal energy of the gas in these three processes. Then :

A

`Delta U_1 gt Delta U_2 gt Delta U_3`

B

`Delta U_1 lt Delta U_2 lt Delta U_3`

C

`Delta U_2 lt Delta U_1 lt Delta U_3`

D

`DeltaU_2 lt Delta U_3 lt Delta U_1`

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The correct Answer is:
A
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