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Questions and Answers
Why do we describe evaporation as a cooling effect?
Why do we describe evaporation as a cooling effect?
- High kinetic energy molecules absorb heat from the surroundings
- Evaporation causes a phase change in the liquid
- Low kinetic energy molecules increase the temperature of the liquid
- High kinetic energy molecules leaving the surface reduce temperature (correct)
What is the main reason behind the cooling effect of evaporation?
What is the main reason behind the cooling effect of evaporation?
- The liquid becoming denser
- High kinetic energy molecules leaving the surface (correct)
- The liquid releasing heat
- Low kinetic energy molecules entering the surface
What happens to the temperature when high kinetic energy molecules evaporate from the surface of a liquid?
What happens to the temperature when high kinetic energy molecules evaporate from the surface of a liquid?
- It increases
- It decreases (correct)
- It fluctuates
- It remains constant
