Calculate the rms speed of an oxygen gas molecule, o2, at 29.0 ∘c. express your answer numerically in meters per second.

The rms speed of a gas can be calculated using the following rule:

Vrms = sqrt (3RT / M) where:

R is the gas constant = 8.314

T is the temperature = 29 + 273 = 302 degrees kelvin

M is the molar mass of the gas (oxygen) = 2*16 = 32 grams = 0.032 kg

Substitute in the equation to get Vrms as follows:

Vrms = sqrt [ (3*8.314*302) / (0.032) ] = 485.05 meters/sec