Question

Distinguish between diffusion and effusion.

Answer 1

	Diffusion	Effusion
1.	The property of gas that involves the movement of the gas molecules through another gas is called diffusion.	It is the property in which a gas escapes from a container through a very small hole.
2.	It is the property in which a gas escapes from a container through a very small hole.	It is the ability of gases to mix with each other
3.	The rate of diffusion of a gas depends on how fast the gas molecules are moving.	The rate that this happens depends on how many gas molecules “collide” with the pore.
4.	E.g., Smell of perfume diffuses into the air.	E.g., Air escaping slowly through the pinhole in a tire.