Looking for classes? Ksquare Career Institute, Bengaluru →
$K_H$ value for some gases at the same temperature 'T' are given:
Ar: 40.3 kbar; $CO_2$: 1.67 kbar; HCHO: $1.83\times10^{-5}$ kbar; $CH_4$: 0.413 kbar
where $K_H$ is Henry's Law constant in water. The order of their solubility in water is:
Detailed Solution
Solubility of a gas $\propto\frac{1}{K_H}$. Higher $K_H$ means lower solubility: Ar (40.3) < $CO_2$ (1.67) < $CH_4$ (0.413) < HCHO ($1.83\times10^{-5}$).