Question

Calculate the volume occupied by $5g$ of acetylene gas at ${50}^{o}C$ and $740mm$ pressure.

Answer 1

$W_{C_2{H}_2}=5g$

$T={50}^{o}C=273+50=323K$

$P=740mm$ of $Hg$

$n_{C_2{H}_2}=\frac{5}{26}mol$

$\therefore PV=nRT$

$V=\frac{\frac{5}{26}\times 0.0821\times 323}{740/760}=5.2375lit$