MCQ
A thermo-dynamical system is changed from state $\left(P_1, V_1\right)$ to $\left(P_2, V_2\right)$ by two different process. The quantity which will remain same will be
- A$\Delta Q$
- B$\Delta W$
- C$\Delta Q+\Delta W$
- ✓$\Delta Q-\Delta W$
✓
Answer
Correct option: D.
$\Delta Q-\Delta W$
(d) Change in internal energy does not depend upon path so $\Delta U=\Delta Q-\Delta W$ remain constant.
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