why detergents become hot when mixed with water?

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why detergents become hot when mixed with water?

2007-08-31 18:46:35 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry

3 answers

It's an exothermic reaction. When they get wet the chemicals in them react in a way that gives off heat. Concrete does the same thing! When it's setting it gets warm. Also plaster.

2007-08-31 18:54:45 · answer #1 · answered by Anonymous · 3⤊ 0⤋

Mainly detergent powders contain basic materials mainly soda ash ( Sodium Carbonate ). When you mix detergent powder with water because of the exotherm of soda ash detergent becomes hot.

2007-09-01 03:13:30 · answer #2 · answered by Anonymous · 1⤊ 0⤋

Exothermic reaction on dissolution.

2007-09-01 02:28:48 · answer #3 · answered by ag_iitkgp 7 · 0⤊ 0⤋