NEET Chemistry Raoult's Law MCQ Question
According to Raoult's Law, if the vapor pressure of a pure solvent is 100 mmHg and its mole fraction in a solution is 0.8, what is the vapor pressure of the solvent in the solution?
80 mmHg
100 mmHg
120 mmHg
20 mmHg
Correct Answer
Detailed Explanation
Raoult's Law states that the vapor pressure of the solvent in a solution is the product of the vapor pressure of the pure solvent and its mole fraction in the solution. Thus, 100 mmHg * 0.8 = 80 mmHg.
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