Verified Solution • 2025–26 Session moderate

QJEEM19Ch7aba: JEE Main 2019 Chemistry - Class 12 JEEM19Ch7aba Solution: Which one of the following statements regarding Henry's law is…

Which one of the following statements regarding Henry's law is not correct ?

Multiple Choice Options

  • A Higher the value of KH at a given pressure, higher is the solubility of the gas in the liquids
  • B Different gases have different KH (Henry's law constant) values at the same temperature.
  • C The partial pressure of the gas in vapour phase is proportional to the mole fraction of the gas in the solution.
  • D The value of KH increases with increase of temperature and KH is function of the nature of the gas

Step-by-Step Verified Solution

From Henry's law we know,

Pgas = KH xg

Where, Pgas = Pressure of undissolved gas

xg = Mole fraction of gas dissolved into the liquid.

KH = Henry's Carnot.

When pressure is constant then,

xg ∝ 1KH

So. when KH is high then xg or solubility of gas is lower in the liquid.

So, option (A) is wrong.

Related Learning Resources & Exam Preparation