Chapter 5, Problem 101E

Interpretation Introduction

Interpretation:Force per impact of hydrogen gas relative to helium gas in flask should be compared.

Concept introduction: The passage of gaseous molecules via a small hole into an empty space is termed as effusion. Graham’s law suggests that the rate of diffusion or effusion of gases varies inversely to the square root of its molar mass. Mathematically it can also be stated as,

  $\frac{{\text{Rate}}_{\text{A}}}{{\text{Rate}}_{\text{B}}}={\left(\frac{M_{\text{B}}}{M_{\text{A}}}\right)}^{1/2}$

Where

• $M_{\text{B}}$ represent molar mass of gas B.
• $M_{\text{A}}$ represent molar mass of gas A.
• ${\text{Rate}}_{\text{A}}$ represent rate of effusion of gas A.
• ${\text{Rate}}_{\text{B}}$ represent rate of effusion of gas B.