Three factors control the rate of evaporation of a liquid: surface area, temperature, and strengths of intermolecular forces. More than one of the statements given described a correct effect. The statements are (1) the larger the surface area, the faster the rate of evaporation of the liquid, (2) the higher the temperature, the faster the rate of evaporation of the liquid, and (3) the stronger the intermolecular attractive forces, the faster the rate of evaporation of the liquid. Which choices are correct?
a) choices 1 and 2
b) choices 1 and 3
c) choices 2 and 3
d) all three choices are valid and describe a correct effect.
e) none of the three choices describe a correct effect
I bet its A
You bet right.
To determine the correct choices, let's analyze each statement in relation to the factors that control the rate of evaporation:
1) "The larger the surface area, the faster the rate of evaporation of the liquid."
This statement is correct. Increasing the surface area of the liquid exposed to the surroundings allows for more liquid molecules to escape as vapor, resulting in a faster evaporation rate.
2) "The higher the temperature, the faster the rate of evaporation of the liquid."
This statement is also correct. Raising the temperature of a liquid increases the average kinetic energy of its molecules, leading to an increased number of molecules with sufficient energy to overcome intermolecular forces and transition into the vapor phase.
3) "The stronger the intermolecular attractive forces, the faster the rate of evaporation of the liquid."
This statement is incorrect. Stronger intermolecular forces, such as stronger hydrogen bonding or dispersion forces, make it more difficult for molecules to escape from the liquid phase and transition into the vapor phase. Therefore, stronger intermolecular forces actually decrease the rate of evaporation.
Based on our analysis, the correct choices are (a) choices 1 and 2.