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Question: Answered & Verified by Expert
A given system undergoes a change in which the work done by the system equals the decrease in its internal energy. The system must have undergone an
PhysicsThermodynamicsAP EAMCETAP EAMCET 2021 (25 Aug Shift 1)
Options:
  • A isothermal change
  • B adiabatic change
  • C isobaric change
  • D isochoric change
Solution:
1327 Upvotes Verified Answer
The correct answer is: adiabatic change
As work done, $\Delta W=\Delta Q-\Delta U$
Since in adiabatic process $\Delta Q=0$ i.e., there is no exchange of heat, the work done by the system is equal to the decrease in its internal energy.

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