Q. In two vessels of 1 L each at the same temperature 1 g of $H_{2}\ and\ 1\ g\ of\ {CH}_{4}$ are taken, for these
A) $V_{rms}$ values will be same
B) Kinetic energy per mol will be same
C) Total kinetic energy will be same
D) Pressure will be same
Explanation
(b)
KE$= \frac{3}{2}\ kT$
Where, $k$ is constant.
$KE\ \propto T$
Here the temperature is same. Hence, for 1 g of $H_{2}$ and 1 g of ${CH}_{4}$ which are taken in two vessels, of 1 L each at same temperature, the kinetic energy per mole will be the same.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.