which statement describes effusion? it occurs when a gas passes through a tiny hole. it occurs when a liquid…

which statement describes effusion? it occurs when a gas passes through a tiny hole. it occurs when a liquid passes through a tiny hole. it occurs when gas molecules disperse throughout a container. it occurs when a liquid disperses throughout a container.
Answer
Brief Explanations:
Effusion is the process where a gas passes through a tiny hole. This is based on the kinetic - molecular theory of gases. The other options about liquids or gas molecules dispersing throughout a container are incorrect descriptions of effusion.
Answer:
It occurs when a gas passes through a tiny hole.