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AP EAMCET202125 Aug 2021Evening ShiftChemistryThermodynamics (C)Actual

The change in internal energy equals

Options

  1. Aisothermal work
  2. Bisochoric work
  3. Cisobaric work
  4. Dadiabatic work

Correct answer

D. adiabatic work

Step-by-step solution

According to thermodynamic first law, change in internal energy of a system equal to the net heat transfer into the system minus net work done by the system. So, Q = + ve adds energy to the system and W = + ve takes energy from the system U=Q-W Here, U= internal energy If, U=-W , then Q=0 i.e. no heat is exchanged. The process is adiabatic. Hence, change in internal energy is equal to adiabatic work.

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