Q. The vapor pressure of a solution containing a non-volatile solute is always:

गैर-वाष्पशील विलेय वाले घोल का वाष्प दबाव हमेशा होता है:

A
Higher than the pure solvent
शुद्ध विलायक से अधिक
B
Lower than the pure solvent
शुद्ध विलायक से कम
C
Equal to the pure solvent
शुद्ध विलायक के बराबर
D
Independent of the solute concentration
विलेय सांद्रता से स्वतंत्र

Explanation

Adding a non-volatile solute reduces the mole fraction of the solvent, lowering its vapor pressure (Raoult’s law).
This is called vapor pressure lowering.

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