why does water boil faster when you add salt?



  1. 0 Votes

    Salt has a lower vapor pressure than water so adding it to water brings down the entire vapor pressure.  This means that a higher temperature is necessary to achieve a boil—so it’s not actually true that salt makes water boil faster!  It will season it for your pasta or rice and will help your food cook more quickly and thoroughly but will not lower the temperature requirement for boiling or get it there any faster.  The boiling point of water at sea level is 100 degrees celsius, or 212F. 

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