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Question: Answered & Verified by Expert

A system goes from A to B via two processes I and II shown in the figure. If ΔU1 and ΔU2 are the changes in internal energies in the processes I and Il respectively

ChemistryThermodynamics (C)AP EAMCETAP EAMCET 2020 (23 Sep Shift 1)
Options:
  • A ΔU1=ΔU2
  • B ΔU1>ΔU2
  • C ΔU1<ΔU2
  • D ΔU1ΔU2
Solution:
1900 Upvotes Verified Answer
The correct answer is: ΔU1=ΔU2

The process in which the initial and final state is the same is known as a cyclic process. It is a sequence of processes that leave the system in the same state in which it started.

Change in internal energy is independent on path, it depends on only initial and final state. So changes in internal energies for both process will be same.

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