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Question:
Does the color of water effect the evaporation?



Replies:
Well, water itself is colorless, so colored water must have had some other kinds of molecules added to it. Since evaporation happens at the molecular level (individual molecules leave the surface) only two things matter: the temperature, and the amount of surface area available for the water to evaporate from. Some additives to water may have special effects at the surface (for example adding oil leaves a film of oil on top of the surface, making it impossible for water to evaporate). And colored additives may change the rate at which the water absorbs or releases heat, thus modifying the temperature. But other than that, color alone should have no effect.

Arthur Smith



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