Question

A certain mass of gas occupied $850ml$ at a pressure of $760mm$ of $Hg$. On increasing the pressure it was found that the volume of the gas was $75$ of its initial value. Assuming constant temperature, find the final pressure of the gas?

Answer 1

$P_1=760mm$

$V_1=850ml$

$V_2=75100\times 850=75\times 8510$

$P_2=?$

$P_1{V}_1=P_2{V}_2$

$\therefore 760\times 850=P_2\times 75\times 8510$

$\therefore 760\times 10\times 1075=P_2$

$P_2=1013.33mm$