Question

Liquid Y has higher vapour pressure than liquid X, which of them willhave higher boiling point?

Answer 1

If vapour pressure increases then boiling point decreases.since liquid X has low vapour pressure than Y so liquid X has high boiling point.

Answer 2

answer : liquid ‘X’ will have higher boiling point.

explanation : first of all, understand what is the meaning of boiling point?

boiling point is the temperature in which the vapor pressure of liquid becomes equal to atmospheric pressure.

now, if the vapor pressure of liquid will be high, it means intermolecular force between molecules are small. little amount of heat energy will be enough to separate the molecules, so the boiling point will be low.

here liquid Y has higher vapor pressure than liquid X so, liquid X will have higher boiling point.