I know that this is something we practically observe that

Last updated: 6/28/2023

I know that this is something we practically observe that all gases stay diffused throughout the s pace despite their molecular weight but I am not able to understand why this is so because if u see then in cold air and warm air cold air being denser settles at bottom whereas warm air remain s on top then why isn t the same principle applicable for molecular masses i e one with higher molecular mass comes to bottom and the lighter one stays at top I read an available answer on it utor and the teacher says that molecular mass doesn t show heaviness of a gas But if this was so then why do we say that lighter gases diffuse out faster out of an orifice than heavier ones The mixture of three gases X Y and Z is enclosed in a closed vessel at constant temperature Molecular weight of X is the highest and that of Y is the least When equilibrium is established the 1 Gas X will be more at bottom 2 Gas Y will be more at top 3 Gas X Y Z are homogeneously present 4 Gas Y will be more at bottom ns