Chapter 6, Problem 6.139QP

Interpretation Introduction

Interpretation: The given balloons filled with ${\text{H}}_{\text{2}}$ and $\text{He}$ and after $24\text{h}$ the volumes of both the balloons are decreased by different amount and the balloon that contained ${\text{H}}_{\text{2}}$ is to be predicted.

Concept introduction: The Graham’s law of effusion states that, “the rate of effusion of gaseous molecules is inversely proportional to the square root of its molar mass of the gas molecules”.

$r\propto \frac{1}{\sqrt{m}}$

To determine: The balloon that contain hydrogen gas ${\text{(H}}_{\text{2}}\text{)}$.