Henry's constant (in kbar) for four gases , , and in water at 298 K is given below : (density of water = 103 kg m–3 at 298 K) This table implies that : (A) Solubility of at 308 K is lower than at 298

Question

Henry's constant (in kbar) for four gases , , and in water at 298 K is given below : (density of water = 103 kg m–3 at 298 K) This table implies that :

(A) Solubility of at 308 K is lower than at 298 K
(B) The pressure of a 55.5 molal solution of is 1 bar
(C) The pressure of a 55.5 molal solution of is 250 bar
(D) has the highest solubility in water at a given pressure

Prashant Kotian · Accepted Answer

Correct answer: C. (i) Though solubility of gas will decrease with increase in temperature but this conclusion can not be drawn from the given table. (ii) For  (P) = (pH) . (X) =                1000 . 5 . 10 2 = 10-2 bar (iii) For P = (kH) . (X) = 0.5 × 103 × 1 = 250 bar. (iv) From Henery's law P = kH(X) Higher the value of kH smaller will be solubility so  is more soluble.

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