Question

Select the correct statements.
I. Pressure of saturated vapours is independent of their volume at constant temperature.
II. Saturated vapours do not obey gas laws except Dalton's law.
III. Saturated vapours do not obey Dalton's law of partial pressure.
IV. Unsaturated vapours obey gas laws.

• A. I, II, IV
• B. II, III, IV
• C. I, III, IV
• D. II, III

Answer 1

The correct option is A I, II, IV

$\begin{array}{c}\text{The relationship between temperature and}\\ \text{saturation vapor pressure is not linear}\\ \text{which means that the rate at which}\\ \text{saturation vapor pressure increases is not a}\\ \text{constant rate as temperature increases}\\ \text{Saturated vapors obeys Dalton's partial pressure}\\ \text{Law and pressure is independent of Volume}\end{array}$

Hence option A is correct