Chapter 10, Problem 10.99SP

Interpretation Introduction

Interpretation:

Out of ${\mathrm{UF}}_6$ at $145°\text{C}$ and Ferrari that has a speed of $\text{145 mph}$, the one that has a higher average speed is to be identified.

Concept introduction:

In accordance with the kinetic-gas theory, the relation between average speed, temperature, and molar mass is as follows:

$u=\sqrt{\frac{3RT}{M}}$

Where

• $R$ is gas constant.
• $T$ represents temperature in kelvins.
• $M$ represents the molar mass in $\text{kg/mol}$.

The conversion factor to convert miles per hour to $\text{m/s}$ is as follows:

$1\text{ mph}=0.44704\text{ m/s}$