Q. A perfect gas at $27℃$ is heated at constant pressure to $327℃.$ If original volume of gas at $27℃$ is $V$ then volume at $327℃$ is
A) $V$
B) $3\ V$
C) $2\ V$
D) $V/2$
Explanation
(c) $V \propto T \Rightarrow \frac{V_{1}}{V_{2}} = \frac{T_{1}}{T_{2}}$
$\Rightarrow \frac{V}{V_{2}} = \frac{(273 + 27)}{(273 + 327)} = \frac{300}{600} = \frac{1}{2} \Rightarrow V_{2} = 2V$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.