Question

Calculate the volume occupied by gram of Acetely $\left(C_2{H}_2\right)$ at ${50}^o$ and 740 mm pressure.

Answer 1

Applying the general gas equation

$PV=nRT$

$=\frac{m}{M}RT$

Molecule weight of $C_2{H}_2$, $M=26$

$P=\frac{740}{760}atm$

$T={50}^{\circ }C=50+273=325K$

$\therefore V=\frac{mRT}{MP}$

$\begin{array}{c}=\frac{1\times 0.082\times 323\times 760}{26\times 740}\\ =1.046L\end{array}$