Why do plastic cups coming out of the dishwasher usually have water left on them but the glass cups are dry?
In: Chemistry
The glass retains a lot more heat and cools very slowly, so the hot surface helps the water stay warm and thus evaporate faster. Plastic on the other hand does not retain heat well so it cools fast and the water cools with it, and dries slowly. The same thing can be demonstrated when you heat things in the microwave. Glass containers often come out very hot and plastic ones not as much.
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