The lowering in vapour pressure when a solute is added

Options

A. Will depend upon the nature of the solute
B. Will be the same irrespective of the solvent taken
C. Will be different when different solvent are taken
D. Will depend on the form ideal solution

Answer

A, C, D

Explanation

Explanation : (a) `Delta P=oP_(A)^(@)x_(B)`
(a) Hence, `Delta F` depends upon i which is dependent on nature of solute (Hence, choice (a) is correct).
(c ) `Delta F` depends upon `P_(A)^(@)`. If `P_(A)^(@)` changes then `Delta F` changes. Hence when different solvents are taken `Delta F` value is different. Choice (c ) is also correct.
(d) Is also correct. `Delta F` changes with mole fraction of solute. `Delta F` also changes with temperature.
(b) Is wrong because `Delta F` depends upon solvent.