Physics · Thermodynamics
Three different processes that can occur in an ideal monoatomic gas are shown in the P vs V diagram. The paths are labelled as A → B, A → C and A → D. The changes in internal energies during these processes are taken as EAB, EAC and EAD and the work done as WAB, WAC and WAD. If the initial state A goes to three different final states B, C, and D lying on the same isotherm, then the correct relation between these parameters is:
- 1EAB > EAC > EAD, WAB < WAC < WAD
- 2EAB = EAC = EAD, WAB > 0, WAC = 0, WAD < 0✓
- 3EAB 0, WAC > WAD
- 4EAB = EAC 0, WAC = 0, WAD < 0
Correct answer
EAB = EAC = EAD, WAB > 0, WAC = 0, WAD < 0
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