Question

Comment on the following statements: a) Evaporation causes cooling. b) Sponge though compressible is a solid. c) Naphthalene balls disappear with time without leaving any soli

Answer 1

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1. Evaporation causes colling because, evaporation needs a heat when there is no heat available it takes from its surroundings that's why it's surroundings get cool.
2. Because it's particles have less force of attraction, because a spong is semi-solid not fully solid.
3. Yes,they do because of the process known as sublimation. Sublimation is a process where any solid state things turns into gaseous state without coming into liquid state.

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