MCQ
In adiabatic expansion
- A$\Delta U=0$
- ✓$\Delta U=$ negative
- C$\Delta U=$ positive
- D$\Delta W=$ zero
✓
Answer
Correct option: B.
$\Delta U=$ negative
In case of adiabatic expansion $\Delta W=$ positive and $\Delta Q=0$
from FLOT $(\Delta Q=\Delta U+\Delta W) \Rightarrow \Delta U=-\Delta W \quad$ i.e., $\Delta U$ will be negative.
from FLOT $(\Delta Q=\Delta U+\Delta W) \Rightarrow \Delta U=-\Delta W \quad$ i.e., $\Delta U$ will be negative.
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