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Question
Choose the most correct option.
Vapour pressure of a solution is _______.
Options
directly proportional to the mole fraction of the solute
inversely proportional to the mole fraction of the solute
inversely proportional to the mole fraction of the solvent
directly proportional to the mole fraction of the solvent
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Solution
Vapour pressure of a solution is directly proportional to the mole fraction of the solvent.
For solutions containing non-volatile solutes, Raoult's law may be stated as at a given temperature, the vapour pressure of a solution containing a non-volatile solute is directly proportional to the mole fraction of the solvent.
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