Why does tap water boil faster than tap water with salt dissolved in it?

Question

Why does tap water boil faster than tap water with salt dissolved in it?

Answer 1

...

   ¡Put...simple.. like for a child -- "without salt, water is so much"lighter"(less heavy)....easy...to boil, --salt just add...weight to the water"!

Answer 2

I always thought salt made it boil faster !

Answer 3

Salt LOWERS the freezing point of water, and RAISES the boiling point of water

Generally any ionic compound added to a liquid that doesn't dissolve will do just that.  The ions, in a nutshell, get in the way of the liquid's molecules and keep them from easily getting close enough for their attractive forces to overcome their random thermal motion(it makes it harder for them to freeze), and they get in the way and make it harder for the liquid molecules to escape(makes it harder to boil)

Answer 4

the NaCl bonds with the H2O or at least some molecules break up and some bond....blahblahblah boring science stuff.....but b/c of the bonds that are created, it requires more energy to break the bonds and create H2O again and then for the H2O to heat enough to boil. that's the short sweet answer.

Answer 5

people use salt when its icy to raise the freezing point of water, so it melts, maybe it raises the boiling point too?