Answer:
A. When a liquid is first placed in a closed container, the evaporation rate is higher than it is in an open container under the same conditions.
Explanation:
Evaporation refers to the process by which a liquid changes to gas or vapor. It usually occurs at the surface of a liquid.
Factors that affects evaporation include; nature of the liquid, surface area of liquid exposed, temperature and wind.
Considering the options given:
A. When a liquid is first placed in a closed container, the evaporation rate is higher than it is in an open container under the same conditions. = False
This is false because, the more the surface of the liquid exposed, the higher the rate of evaporation.
B. When a liquid is first placed in a closed container, the evaporation rate is higher than the condensation rate. = True
This is true because when a liquid is first placed in a container, the equilibrium position favors evaporation initially than condensation as saturation of the space above the liquid with vapor has not been achieved.
C. When the rates of evaporation and condensation are equal, the system has reached dynamic equilibrium.= True
Dynamic equilibrium is achieved when the rate of forward and backward reaction, in this case, evaporation and condensation are equal.
D. Vapor pressure refers to the pressure of a gas at a given temperature in equilibrium with its liquid phase. = True
E. Stronger intermolecular forces within the liquid typically result in a lower vapor pressure under a given set of conditions. = True
Strong intermolecular forces between the molecules of the liquid causes the liquid to remain in the liquid state rather than turning to vapor, thereby lowering vapor pressure
