Question

Why henry's law is a special case of rauolts law?

Answer 1

where p is the partial pressure and x is the mole fraction. ... The Raoult's law and the Henry's law are obeyed in opposite composition ranges. Hence, Raoult's law is a "special" case of Henry's law.

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Raoults law as special case of Henrys law - ExamFear

Raoult's law as special case of Henry's law. At a given temperature liquids vaporize. At equilibrium the pressure exertedby the vapour of the liquid over the liquidphase is referred to as vapour pressure.

Answer 2

☆. Raoult’s law becomes a special case of Henry’s law when KH becomes equal to p¹0 in Henry’s law.

EXPLANATION -

The Henry’s constant is approximately equal to the vapour pressure only for ‘ideal’ mixtures (mixtures obeying the Raoult’s law over the entire range of composition), which doesn’t exist. Still, closely related substances like benzene and toluene can form a close to an ideal mixture where this case applies.

- The Raoult’s law and Henry’s law are obeyed in opposite composition ranges.

Hence, Raoult’s law is a special case of Henry’s law.