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is there any critera to use relative lowering of vapour pressure formula or lowering of vapour pressure formula in questions?

is there any critera to use relative lowering of vapour pressure formula or lowering of vapour pressure formula in questions?

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1 Answers

Naveen Kumar
askIITians Faculty 60 Points
9 years ago
The lowering of vapour pressure and relative lowering of vapour pressure is different quantity.
lowering of vapour pressure=P0-P
relative lowering of vapour pressure=P0-P/P0
The Rault’s law is given in terms of Relative lowering of vapour pressure which is equal to mol fraction of solute in the solution and from you it is expected to use correct formula.

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