The mass of Hydrogen molecule is $3.32\times {10}^{-24}$ grams if 1023 hydrogen molecules per second strike 2 $c{m}^2$ of wall at an angle of 45° with the normal, when moving with a speed of ${10}^5$ cm/s. The pressure exerted on the wall is nearly

$\begin{array}{l}\text{ Pressure }\mathrm{P}=\frac{F}{A}=\left[\frac{\mathrm{\Delta }P}{\mathrm{\Delta }t\left(A\right)}\right]\\ \mathrm{P}=\frac{2mV\cos \theta }{\mathrm{\Delta }tA}\cdot N\\ all given values of various physical quantities are converted into MKS system; mass=3.32\times {10}^{-24}\times {10}^{-3}kg;velocity={10}^{3}m/s;\cos 45=\frac{1}{\sqrt{2}};\\ N={10}^{23}= avagadro number;time=1 sec;Area=2\times {10}^{-4}mete{r}^2\\ \mathrm{P}=\frac{2\times 3.32\times {10}^{-24}\times {10}^{-3}\times {10}^3\times \cos 45\times {10}^{23}}{1\times 2\times {10}^{-4}}\\ P=2350\mathrm{N}/{\mathrm{m}}^2\end{array}$