General Chemistry

Free Version

Upgrade subject to access all content

Moderate

Gases: Average Velocity, Root Mean Square Speed

CHEM-V81D3Y

What is the root means square speed, in m/s, of methane gas molecules in a sample at 30.00$^{o}$C?

$$u_{rms}\ =\ \sqrt{\frac{3RT}{MM } }$$

where$u_{rms}$ is root mean square speed; R is the gas constant; T is temperature in K; and MM is molar mass.