Q. 4

# Refer to figure. Let ΔU_{1} and ΔU_{2} be the changes in internal energy of the system in the process A and B. Then

A. ΔU_{1} > ΔU_{2}

B. ΔU_{1} = ΔU_{2}

C. ΔU_{1} < ΔU_{2}

D. ΔU_{1} ≠ ΔU_{2}

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, ΔU_{1}=ΔU_{2}=0.

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