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GK QUESTION#3134

Which of the following demonstrates cooling caused by evaporation? I. Pouring acetone on the palm II. Sprinkling water on the roof after a hot day

  1. AOnly I
  2. BOnly II
  3. CBoth I and IICorrect answer
  4. DNeither I nor II
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Answer

C. Both I and II

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Explanation

Both situations illustrate evaporative cooling. Evaporation requires latent heat, which can be supplied by the surface and surroundings, reducing their temperature.

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