Question

The partial pressure of ch3oh co and h2 in the equilibrium mixture for the reaction co + 2h2 produces ch3oh at 427 degree celsius are 2,1 and 0.1 respectively the value of kp for the decomposition of ch3oh into co and h2 is

Answer 1

Answer :The value of $K_p$ for the decomposition of $CH_3OH$ into CO and $H_2$ is 0.005

Solution :

Given partial pressures:

$p_{CH_3OH}=2$

$p_{CO}=1$

$p_{H_2}=0.1$

$CH_3OH(g)\rightleftharpoons CO(g)+2H_2(g)$

Expression of $K_p$ is written as:

$K_p=\frac{p_{CO}\times p_{H_2}^2}{p_{CH_3OH}}$

$K_p=\frac{1\times (0.1)^2}{2}=0.005$

The value of $K_p$ for the decomposition of $CH_3OH$ into CO and $H_2$ is 0.005