Question

Which of the following is not correct about Henry’s law?

• A. On increasing temperature value of ${\mathrm{K}}_{\mathrm{H}}$ increases
• B. Value of ${\mathrm{K}}_{\mathrm{H}}$ increases solubility of gas increases
• C. The value of ${\mathrm{K}}_{\mathrm{H}}$ for two different gases at the same temperature is not the same
• D. None of these

Answer 1

The correct option is B

Value of ${\mathrm{K}}_{\mathrm{H}}$ increases solubility of gas increases

The correct answer is b:

The explanation for the correct answer

(b)

• Explanation: P = Solubility x ${\mathrm{K}}_{\mathrm{H}}$, P = Gas partial pressure, Henry's constant is ${\mathrm{K}}_{\mathrm{H}}$.
• ${\mathrm{K}}_{\mathrm{H}}$ Solubility (${\mathrm{K}}_{\mathrm{H}}$ is different for different gas)
• If the solubility of a gas increases, the value of ${\mathrm{K}}_{\mathrm{H}}$ decreases, according to this formula.

The explanation for the incorrect answer

(a)

• Explanation: When the temperature was kept at the same amount the amount of gas dissolved in a liquid is directly proportional to the partial pressure above the liquid according to Henry's law Henry's law is unchanging.

(c)

• Explanation: The constant of Henry increases with temperature and reduces with solubility the soluble volume of a gas in a liquid is equal to the gas's pressure the nature of gas-liquid and temperature has a major effect on the value of Henry's constant.

The correct answer is b: If the solubility of a gas increases, the value of ${\mathrm{K}}_{\mathrm{H}}$ decreases, according to this formula.