Answer:
Correct answer is PM ÷ RT
Explanation:
Ideal gas equation, [tex]$PV=nRT$\\[/tex].........(1)
Where,
P = Pressure of the gas
V = Volume occupied by the gas
n = Number of moles of gas = [tex]$=\frac{Mass}{Molecular mass}$[/tex]
R = Universal gas content
T= Temperature
[tex]$\therefore PV=\frac{m}{M} RT$
[tex]$P=\frac{m}{V} \frac{RT}{M}$[/tex]
[tex]$\Rightarrow P=d\frac{RT}{M}$[/tex] [tex]($\because Density, d=\frac{m}{V}$)[/tex]
[tex]$\therefore d=\frac{PM}{RT}$[/tex]
