Question

Which statement best describes the energy changes associated with evaporation and boiling?
Atoms gain energy during evaporation and boiling.
Atoms lose energy during evaporation and boiling.
Atoms gain energy during evaporation but lose energy during boiling.
Atoms lose energy during evaporation but gain energy during boiling?

Answer 1

Solid -> liquid requires adding energy
Liquid -> gas requires adding energy
Gas -> Liquid requires removing energy
Liquid -> solid requires removing energy

Answer 2

Any thoughts using this info?

Answer 3

a Atoms gain energy when either evaporating or boiling. That's why you have to keep the heat on a pot of water to keep it boiling/simmering. The energy comes from your fuel bill, basically. On a hot day, a puddle of water will "vanish" more quickly than on a cold day. The atmosphere has more kinetic/thermal energy on a hot day, so the puddle of water molecules gain energy, and so they evaporate more quickly.
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