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.
- According to Raoult’s law, vapour pressure of a volatile component in a given solution ca be defined by pi = pi 0 xi
- In an answer of a gas in a fluid one of the segments is volatile to the point that it exists as a gas and solvency is given by Henry's law which expresses that p = KH x
- Comparing both the equations we get that partial pressure of the volatile component or gas is directly proportional to its mole fraction in solution. Proportionality constant KH differs from p10
- Therefore, Raoult's law turns into a unique instance of Henry’s law in which KH get to be equivalent to p10.
