Which of the following gases would move at the fastest speed, assuming the temperature of each gas is the same?

Question

Quizplus · Accepted Answer

The speed of a gas molecule is inversely proportional to the square root of its molar mass (Graham's law of effusion). Nitrogen (N2) has a lower molar mass (28 g/mol) compared to oxygen (O2, 32 g/mol) and carbon dioxide (CO2, 44 g/mol), making it the fastest moving gas under the same temperature conditions.

Which of the Following Gases Would Move at the Fastest