Answered: State ‘Raoult’s Law’ for a solution of…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

State ‘Raoult’s Law’ for a solution of volatile liquids.

Expert Solution

Step 1

According to Raoult’s law a solvent’s partial vapour pressure in a solution (or mixture) is equal to the vapour pressure of the pure solvent multiplied by its mole fraction in the solution.

Mathematically, Raoult’s law equation is written as;

_{$P_{solution} {=X}_{solvent} P_{solvent}^{0}$}

Where,

$P_{solution}$ = vapour pressure of the solution
Χ_solvent = mole fraction of the solvent
P0_solvent = vapour pressure of the pure solvent

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