Solution: Consider separate 1.0-L gaseous samples of He, N2, and O2, all at STP and all acting ideally. Rank the gases in order of increasing average kinetic energy and in order of increasing average velocity.

Problem

Consider separate 1.0-L gaseous samples of He, N2, and O2, all at STP and all acting ideally. Rank the gases in order of increasing average kinetic energy and in order of increasing average velocity.