Question

In a gaseous mixture at ${20}^{0}C$ the partial pressure of the component gases $H_2,{CO}_2,{CH}_4,C_2{H}_4$ are 200mm, 150mm, 320 mm, 130 mm respectively. Volume reaction of $H_2,{CO}_2,{CH}_4,C_2{H}_4$, $H_2$ is:

• A. 0.33
• B. 0.25
• C. 0.5
• D. 0.75

Answer 1

The correct option is B 0.25

Volume fraction $=\frac{\text{No. Of Moles}}{\text{Total Moles}}$

Partial Pressure $=\frac{\text{No. Of Moles}}{\text{Total Moles}}\times Total$ $P$

$x=\frac{P.P}{\text{Total P}}\to$ volume fraction $=\frac{200}{800}=0.25$