Why isn’t water temperature taken into account when calculating evaporation rate?

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Basically the title. First I look up a calculator, and there were different variables, even the air temperature, but not water. I always thought hotter water means faster evaporation. And if it’s true, how happens that it doesn’t matter when calculating evaporation rate? Is it because evaporation require a lot of heat, and no matter how much heat water have, it’s not enough to affect evaporation rate?

In: Physics

3 Answers

Anonymous 0 Comments

No, the water temperature DEFINITELY affects evaporation rate. Whatever calculator you were looking at must be assuming that the water will be at the same temp as what you input for the air temp. If the water was being directly heated to a warmer temp than the air (eg 60C water in 25C air) then it would be a more complex calculation and you’d have to use a different calculator / model.

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