MCQ
The value of Henry’s constant KH is ___________.
  • A
    Greater for gases with higher solubility.
  • B
    Greater for gases with lower solubility.
  • C
    Constant for all gases.
  • D
    Not related to the solubility of gases.

Answer

  1. Greater for gases with lower solubility.

Explanation:

The value of Henry's constant KH is greater for gases with lower solubility because of the mathematical relation.

$\text{P}=\text{K}_\text{H}\times\text{x}$

$\text{K}_\text{H}=\frac{\text{P}}{\text{x}}$

where, KH represents Henry's constant, p is partial pressure of the gas in vapour phase, and x denotes mole fraction of the gas in solution. Thus KH is inversely proportional to mole fraction of gas in solution (representing its solubility).

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