What is heat of vaporization? How can it be used at temperature as low as 25 °C?

When I first learned this term. I was introduced to this graph: ![enter image description here](https://i.stack.imgur.com/sucSu.jpg)


The heat in this case is at 100 °C, which I had ever since believed to be the only temperature of vaporization, **assuming vaporization = boiling.**


Then I saw a table with all the heat of vaporization values for different compounds. Most importantly, all these values apply to reactions at 25 °C. 


Different heat of vaporization values apply to different temperature. **but water, for ex., cannot boil, with vapor bubbles, unless at 100 °C, thus all the energy used will just be used to simply raise the temperature.** *wouldn't it?*




Think of vaporization as the removal of the fastest molecules. The separation of the gaseous form from the more closely-bound liquid therefore removes energy from the liquid. The heat of vaporization can apply at much lower temperatures than the BP of water *at atmospheric pressure*. Even on a day when the temperature is well blow freezing, laundry will dry on a clothesline because ice evaporates (well, sublimes). Also, water at skin temperature soon feels cold as it loses heat through evaporation.


BTW, the boiling point of water is 100 °C only at 1 atmosphere; see this [video of water boiling at room temperature](https://www.youtube.com/watch?v=pOYgdQp4euc), ~25 °C.


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