IJMB 2025 PHYSICS PAPER 1
IJMB 2025 PHYSICS PAPER 1 QUESTIONS BELOW
SOLUTIONS BELOW
IJMB PHYSICS PAPER I
NUMBER 10
Evaporation is the process where a liquid substance changes into a gaseous state (vapor) below its boiling point. It’s a phase transition that occurs at the surface of the liquid, where molecules with enough kinetic energy break free from the liquid’s surface and enter the surrounding atmosphere as vapor.
(b)
Evaporation is typically accompanied by cooling because the process requires energy to change a liquid into a gas, and this energy is often absorbed from the surrounding environment, thus lowering the temperature. This is known as evaporative cooling
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