Question

Vapour pressure at the equilibrium state is known as
I. equilibrium vapour pressure
II. saturated vapour pressure
Choose the correct statement.

• A. Only I
• B. Only II
• C. Both I and II
• D. Neither I nor II

Answer 1

Answer: (C)

A dynamic equilibrium is established between the liquid phase and vapour phase. Vapour pressure at this stage is known as equilibrium vapour pressure or saturated vapour pressure.
Thus, statements I and II are correct.