Question

If 300 ml of a gas at ${27}^{\circ }C$ is cooled to $7^{\circ }C$ at costant pressure, then its final volume will be

• A. 540 ml
• B. 350 ml
• C. 280 ml
• D. 135 ml

Answer 1

The correct option is C

280 ml

$V\propto T$ at a constant pressure

$\Rightarrow \frac{V_1}{V_2}=\frac{T_1}{T_2}\Rightarrow V_2=\frac{V_1{T}_2}{T_1}=\frac{300\times 280}{300}=280ml.$