AIPMT PRELIMS 2005 Chemistry Raoult's Law MCQ Question
The vapour pressure of two liquids P and Q are 80 and 60 torr, respectively. The total vapour pressure of solution obtained by mixing 3 moles of P and 2 moles of Q would be:
144 torr
288 torr
14 torr
72 torr
Correct Answer
Detailed Explanation
The total vapour pressure is calculated using Raoult's law: P_total = (mole fraction of P × vapour pressure of P) + (mole fraction of Q × vapour pressure of Q).
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