The Henry's law constant () values for , , , and in water at are , , , and respectively. Based on these values, which of the following statements are chemically correct?

Question

The Henry's law constant ($K_H$) values for $Ar$, $CO_2$, $H_2$, and $O_2$ in water at $298	ext{ K}$ are $40.3$, $1.67$, $69.16$, and $34.86	ext{ kbar}$ respectively. Based on these values, which of the following statements are chemically correct?

Prashant Kotian · Accepted Answer

Correct answer: A,B,C. From the relation , we can deduce . Thus, at constant pressure, a higher indicates lower solubility. The given order is . Inverting this gives the solubility order: . Option D is incorrect because is inversely proportional to solubility.

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