Question

If P, V, M, T and R are pressure, Volume, molar
mass, temperature and gas constant respectively,
then for an ideal gas, the density is given by
(a) RT (b) P
PM RT
(c) M (d) PM
V RT

Answer 1

D PMV RT

Explanation:

BECAUSE THAT IS MOST IMPORTANT FOR US

Answer 2

(d) PM/RT

Explanation:

The empirical relationships among the volume, the temperature, the pressure, and the amount of a gas can be combined into the ideal gas law, PV = nRT.

PV = (m/M) (RT)

or PM = (m/V) (RT) = dRT

d = PM / RT

So density = PM / RT

Option D is the answer.