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When you add salt to water that is going to be boiled it actually takes a bit longer to boil. The reason for this is Boiling Point Elevation. When you add salt it actually creates a barrier for the gas molecules or vapor molecules to escape the top of the water. The extra heat needed gets the water molecules moving fast enough that they can reach a speed at which they can escape as steam when the water boils. You many cook the food faster after the water boils because it is at a higher temperature.

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15y ago

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