Final answer:
The statement that evaporation happens more quickly at higher temperatures is true. Evaporation is a process where a liquid becomes a gas below its boiling temperature, not requiring the liquid to reach or be at the boiling point.
Step-by-step explanation:
The statement that is true about evaporation is: 3) It happens more quickly at higher temperatures.
When considering which statement is true about evaporation, the correct answer is that it happens more quickly at higher temperatures. Evaporation is the process by which a liquid turns into a gas below its boiling temperature, and does not require the liquid to reach the boiling point. Therefore, statements 1 and 2 are not accurate descriptions of evaporation. The higher the temperature, the more energy is available to the molecules in the liquid, allowing more molecules to achieve the kinetic energy needed to escape into the vapor phase.
The concept that evaporation occurs when a liquid boils is a common misconception; boiling is a different process that occurs when a liquid reaches its boiling point and transitions to the gas phase throughout the entire volume of the liquid, not just from the surface. The boiling point is the temperature at which the vapor pressure of a liquid equals the external pressure, leading to the formation of gas bubbles within the liquid itself, which is not the case with evaporation.