A mixture of two immiscible liquids at a constant pressure of 1 atm boils at a temperature

Question

A mixture of two immiscible liquids at a constant pressure of 1 atm boils at a temperature (A) Equal to the normal boiling point of more volatile liquid (B) Equal to the mean of the normal boiling points of the two liquids (C) Greater than the normal boiling point of either of the liquid (D) Smaller than the normal boiling point of either of the liquid

Tardigrade Admin · Accepted Answer

The vapour pressure of a mixture of two immiscible liquids is the sum of their vapour pressures in the pure states, independent of their relative amounts. Hence, B.Pt. of the mixture will be less than that of either of the liquids, remaining constant throughout.

Q. A mixture of two immiscible liquids at a constant pressure of 1 atm boils at a temperature

Equal to the normal boiling point of more volatile liquid

Equal to the mean of the normal boiling points of the two liquids

Greater than the normal boiling point of either of the liquid

Smaller than the normal boiling point of either of the liquid

The vapour pressure of a mixture of two immiscible liquids is the sum of their vapour pressures in the pure states, independent of their relative amounts. Hence, B.Pt. of the mixture will be less than that of either of the liquids, remaining constant throughout.