Question

Using the equation P=m/V show that the equation PV=nRT can become P/p=(R/MW)T

P=pressure
p=density of air
n=number of moles of gas
R=gas constant
T=temperature
m=mass
V=volume
MW=mass of one mole of air

Answer 1

PV=nRT
PV=(m/MW)RT
P(V/m)=(R/MW)T
P(1/ρ)=(R/Mw)T
Mw = 28.97 is the wean value if gas is air