How to pronounce“effusion”in English

be an effusion of lava which sticks to the ground and and uh so we won't load

You learned about effusion and what Thomas Graham's Law of Effusion tells us about it, and how the law of effusion can also be applied to diffusion, but not as reliably.

But this is called the rate of effusion, not the velocity.

Thomas Graham measured the rates of effusion for various gases and his results fit perfectly with what we already know: the more massive a gas is, the

Careful calculation shows that Cl2's rate of effusion under these conditions would be 0.052 liters per minute, significantly slower than helium.

simply by disregarding the collisions and applying Graham's Law of Effusion to diffusion as well.

The process by which gases travel through an orifice or opening is known as effusion.