Question

please tell answer its emergency please tell correct answer please ​

Answer 1

Answer:

1.

When we pour some acetone on our palm we feel a sudden coolness. This is because acetone evaporates taking heat from its surroundings ( the palm). This heat taken is the latent heat of vaporization.

2.

Yes! Evaporation is a surface phenomenon because it's rate depends on the amount of liquid disposed to its surrounding. Logically, the molecules of a certain liquid are closest to their surroudning when they form the surface layer, increase in the amount of molecules present at surface increases the rate of evaporation.

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Hope this helps!