Friday, October 29, 2010
Does adding salt to water make it boil faster?
Nope, not a bit. In fact, adding salt raises the boiling point of water, so it will take slightly longer to boil, on the order of a couple milliseconds. This has a lot to do with thermodynamics (enthalpy, entropy, specific heat capacity, partial differential equations, etc.) but I won't bore you with the details. Salt will flavor whatever you're boiling, but it won't decrease the time it takes to boil.