Multiple choice

Why do you feel a cooling effect when you sprinkle water on the ground after a hot sunny day?

  1. Because of latent heat of fusion

  2. Because of latent heat of vapourisation

  3. Because of latent heat of condensation

  4. Because of latent heat of precipitation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

After a hot sunny day, people sprinkle water on the roof or open ground because the large latent heat of vaporisation of water helps to cool the hot surface. 

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