# The vapor pressure of the solvent decreased by 10 mm Hg, when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is 0.2. What should be the mole fraction of the solvent, if the decrease in vapor pressure of the solvent is required to be 20 mm Hg ? with Answer - Chemical Engineering Mcqs | TestPrep

> Solved MCQ: The vapor pressure of the solvent decreased by 10 mm Hg, when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is 0.2. What should be the mole fraction of the solvent, if the decrease in vapor pressure of the solvent is required to be 20 mm Hg ? Correct Answer: D. 0.6. Verified answer explanation for FPSC, PPSC, MDCAT, NTS, and CSS competitive exam preparation.

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# The vapor pressure of the solvent decreased by 10 mm Hg, when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is 0.2. What should be the mole fraction of the solvent, if the decrease in vapor pressure of the solvent is required to be 20 mm Hg ?

Direct Answer & Quick Reference

The correct option is **D. 0.6**.

A. 0.2

B. 0.1

C. 0.4

D. 0.6 **(Correct Answer)**

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Verified Key: D. 0.6
Solved by 3,579+ students

Verified against official examination board answer keys and standard curriculum textbooks.

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