Graham's Law of Effusion Calculator

Compare the effusion or diffusion rates of two gases using Graham's Law - rate is inversely proportional to the square root of molar mass.

Frequently Asked Questions

What is the law of effusion?

The law of effusion states that the rate at which a gas escapes through a small opening is inversely proportional to the square root of its molar mass, so lighter gases effuse faster than heavier ones.

Why do helium balloons deflate faster than air balloons?

Helium has a very low molar mass, so by the law of effusion it escapes through the balloon material faster than the heavier nitrogen and oxygen molecules in air.

Important Disclaimer: Estimates for informational purposes only.

This calculator provides estimates for informational purposes only. Results are based on assumptions and may not reflect actual outcomes. Consult qualified professionals in relevant fields before making important decisions based on these results.