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Figure shows the p-V diagram of an ideal...

Figure shows the `p-V` diagram of an ideal gas undergoing a change of state from A to B. Four different parts I, II, III and IV as shown in the figure may lead to the same change of state. ltBrgt

A

Change in internal energy is same in IV and III cases, but not in I and II

B

Change in internal energy is same in all the four cases

C

Work done is maximum in case I

D

Work done in minimum in case II

Text Solution

Verified by Experts

The correct Answer is:
B, C
Change in internal energy for the process A to B
`dU_(AtoB)=nC_(v)dT=nC_(v)(T_(B)-T_(A))`
Work depends only on temperature at A and B.
Work done for A to B, `dW_(AtoB)=` Area under the `p-V` curve which is maximum for the path I.
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