NCERT Solutions for Class 12 Chemistry Chapter 1 Solutions Page No. 9 NCERT Academic Session 2023-2024.
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According to Raoult’s law, partial vapour pressure of volatile component is equal to product of vapour pressure of pure component and mole fraction of that component in the solution.
P =P⁰ X.
OR
For any solution the partial vapour pressure of each volatile component in the solution is directly proportional to its mole fraction.