The $K_{H}$ values for some gases at the same temperature '$T$' are given below:
Gas
$K_{H} / \text{kbar}$
$Ar$
$40.3$
$CO_{2}$
$1.67$
$HCHO$
$1.83 \times 10^{-5}$
$CH_{4}$
$0.413$
where $K_{H}$ is Henry's Law constant in water. The order of their solubility in water is:
| Gas | $K_{H} / \text{kbar}$ |
|---|---|
| $Ar$ | $40.3$ |
| $CO_{2}$ | $1.67$ |
| $HCHO$ | $1.83 \times 10^{-5}$ |
| $CH_{4}$ | $0.413$ |
where $K_{H}$ is Henry's Law constant in water. The order of their solubility in water is:
- A$Ar < CO_{2} < CH_{4} < HCHO$
- B$Ar < CH_{4} < CO_{2} < HCHO$
- C$HCHO < CO_{2} < CH_{4} < Ar$
- D$HCHO < CH_{4} < CO_{2} < Ar$
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