Question

A sample of carbon dioxide occupies $30c{m}^3$ at ${15}^{o}C$ and $740mm$ pressure. Find its volume at S.T.P.

Answer 1

V = $30c{m}^3$

P = 740 mm

T = 288 K

$P_1$ = 760 mm

$V_1$ = ?

$T_1$ = 273 K

By gas equation,

$\frac{PV}{T}=\frac{P_1{V}_1}{T_1}$

$\frac{740\times 30}{288}=\frac{760\times V_1}{273}$

$V_1=27.7c{m}^3$