At what temperature is the root mean square speed of an atom in an argon gas cylinder
Channel: Doubtnut
Date: 2020-08-02

At what temperature is the root mean square speed of an atom in an argon gas cylinder equal to the r.m.s. speed of a helium gas atom at `-20^(@) C` ? (Atomic mass of Ar = 39.9 u, of He = 4.0 u).