alleryWhat happens to heat when liquid water changes into vapour?
AIt is released by the water
BIt is absorbed by the water
CIt stays exactly the same
DIt turns into sound energy
Answer & Solution
Correct answer: B. It is absorbed by the water
1. Turning liquid into vapour needs energy.
2. Heat is absorbed during evaporation; it is called the latent heat of vaporization.
3. Heat is released in the reverse change, condensation, not in evaporation.
_Source: Wikipedia, Water cycle, lead section_
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