A gas mixture consists of molecules of type A, B and C with masses `m_(A)gtm_(B)gtm_(C)`. Rank the three types of molecules in decreasing order of (a) average K.E., (b) rms speeds

Explanation

Here , `m_(A) gt m_(B) gt m_(C)`
(a) under given conditions of temperature and pressure , average `KE` will be same for all the three type of molecules .
(b) = as `upsilon_(rms) prop 1/(sqrt(m)) and m_(A) gt m_(B) gt m_(C) :.upsilon_(rms) gt upsilon_(B) gt upsilon_(A)`.