Q. A mixture of 0.50 mole of $H_{2}$ and 0.50 mole of $SO_{2}$ is introduced into a 10.00 L container at $25℃$. The container has a pinhole leak. After a period of time, the partial pressure of $H_{2}$ in the remaining mixture
A) Exceeds that of $SO_{2}$
B) Is equal to that of $SO_{2}$
C) Is less than that of $SO_{2}$
D) Is the same as in the original mixture
Explanation
(c)
$H_{2}\ \ \ \rightleftharpoons \ \ SO_{2}$
Initial 0.5 mol 0.5 mol
After a period of time $H_{2}$ being lighter, effuse faster and hence, in larger amount. Thus, it will remain less than $SO_{2}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.