In the sultry summer weather, if you put a bottle of iced mineral water in the air, water droplets will soon condense on the surface of the bottle. Explain what?

Solution: The weather is too hot, the temperature of water vapor in the surrounding air is high, and the temperature of the mineral water bottle just taken out of the freezer is low, so the water vapor in the air will release heat and liquefy into small water droplets, forming what we see as "white fog"; After a period of time, the "white fog" absorbs the heat in the air and evaporates into water vapor, which dissipates in the air.

So the answer is: liquefaction, vaporization.