Choose the correct options.

Options

A. In `p = (m)/(M) R T`, (m) is mass of gas per unit volume.
B. In `p V = (m)/(M) R T`, (m) is mass of one molecule of gas.
C. In `p = (1)/(3) (m N)/(V) v_(r m s)^2`, (m) is total mass of gas.
D. In `v_(r m s) = sqrt (3 k T)/(m)` , (m) is mass of one molecule of gas.

Answer

A, D

Explanation

(a) `p = (n R T)/(V) = ((m//V)R T)/(M)`
So, given (m) in the question is mass of gas per unit volume.
(b) (m) = total mass of gas
(m) = mass of one molecule of gas.