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The salt alters the boiling point of the water so that it is lower, hence the faster boiling time.

Actually, the addition of salt to water elevates its boiling point. This can be proven by a simple experiment.

Boil water in a pot on the stove. Just as the water is starting to boil add copious amounts of salt. You should find that the water ceases to boil.

If the water were to commence to boil more vigorously then this would confirm that the boiling point is depressed.

The reason for the elevated boiling point is that the addition of salt (a polar compound) creates and additional bond between itself and the (polar) water molecules. This bond represents additional energy that must now be over-come to make the water boil.

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15y ago

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