JAMB Physics 2010 Objective — Question 21

21. A vapour is said to be saturated when A. a dynamic equilibrium exists such that more molecules return to the liquid than are leaving it B. the vapour pressure is atmospheric C. the temperature of the vapour varies D. a dynamic equilibrium exists between liquid molecules and the vapour molecules

• A. a dynamic equilibrium exists such that more molecules return to the liquid than are leaving it
• B. the vapour pressure is atmospheric
• C. the temperature of the vapour varies
• D. a dynamic equilibrium exists between liquid molecules and the vapour moleculesCorrect