Q. 4

Refer to figure. Let ΔU1 and ΔU2 be the changes in internal energy of the system in the process A and B. Then
A. ΔU1 > ΔU2

B. ΔU1 = ΔU2

C. ΔU1 < ΔU2

D. ΔU1 ≠ ΔU2

Answer :

Initial and final points of both processes A and B are same. Therefore, change in internal energy in both the processes will be the same because internal energy is a state variable, independent of the path taken.

Therefore, ΔU1=ΔU2=0.

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