Quizzes & Puzzles1 min ago
Soap lather and suds
4 Answers
Why is it that cold water seems to get rid of soap suds more quickly than hot water?
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I think one factor is temporary hardness in the water. Temporary hardness is found in limestone or chalk areas and is calcium bicarbonate in the water. Heat breaks down this compound into calcium carbonate (limescale) and carbon dioxide.
Hot water is less hard than cold water. Hardness in the water reacts with the soap and destroys the foam.
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