Thank you for reporting, we will resolve it shortly
Q.
A sample of an ideal gas occupies a volume $V$ at pressure $P$ and absolute temperature $T$. The mass of each molecule is $m$, then the density of the gas is
Kinetic Theory
Solution:
The equation which relates the pressure $(P)$, volume $(V)$ and temperature $(T)$ of the given state of an ideal gas is known as ideal gas equation
$PV = KTN$, where $N$ is the number of molecules
$P\left(\frac{Nm}{\rho}\right) = KTN\quad\left[\because V = \frac{m}{\rho }\right]$
Density of gas, $\rho= \frac{Pm}{KT}$