Chapter 10, Problem 84GQ

Interpretation Introduction

Interpretation: The time required by the given moles of methane to effuse through a barrier should be determined under given conditions.

Concept introduction:

The root mean square velocity $\mu$ is defined as the measure of velocity of particle in gas.  It is the method to determine the single velocity value for particles.

Root mean square velocity can be determined,

  ${\mu }_{rms}={\left(\frac{3RT}{M}\right)}^{1/2}$ (1)

  $\begin{array}{l}\left(\text{gas constant}\right)R=\frac{8.314J}{Kmol}\\ M=Molarmass\end{array}$

Molar mass: The molar mass of a substance is determined by dividing the given mass of substance by the amount of the substance.