MCQ
The gas absorbs $100\, J$ and is simultaneously compressed by a constant external pressure of $1.50\, atm$ from $8\, lit$ to $2\, lit$ volume. Hence $\Delta U$ will be.....$J$
- A$-812$
- ✓$812$
- C$1011$
- D$911$
✓
Answer
Correct option: B.
$812$
b
$\begin{array}{l}
\Delta U = q + w\\
w = - {P_{ext}}.\Delta V
\end{array}$
$\begin{array}{l}
\Delta U = q + w\\
w = - {P_{ext}}.\Delta V
\end{array}$
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