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Does Water With Salt Boil Faster Than Plain Water And How To Create Project?

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37 Answers

Katie Harry Profile
Katie Harry answered
Regular water will boil faster than that with salt added to it. This is because adding salt to water increases its boiling point and thus it takes longer for the water to reach this temperature, that is it takes longer to boil.
However, common myth is that salt water boils quicker. Many people have deduced that because food cooks quicker in salt water. This is only because the boiling temperature of the water being used is higher and thus food is exposed to a higher temperature then it would have if regular water was used. Higher temperature helps cook food quicker not that the salt water is boiling faster.
You can actually try it out at home. Take one kettle with plain water in it and another one in which you pour a tablespoon of common salt.
Put them both on the stove at the exact same moment. Time them. You will note that plain water boils first. Ever wondered why water boils so quickly when you want to make coffee and seems to take ages when you want to boil it to cook pasta. Well, now you know. Its because pasta water always has salt in it and water boiled for coffee is plain water! :)
Anonymous Profile
Anonymous answered
Tap water boils faster than the salt water because tap water has less particles than the salt water.
John Profile
John answered
It also would depend on the salt content of the water. Have one pot/pan (same sizes/material)with regular water(at same level) and one with salt (choosing a amount that is enough to detect a difference in the two ) place a cooking thermometer in each and see which one reaches the hottest temperature the fastest by timing them after setting the heat at the same approximate levels.
Katie Profile
Katie answered
Salt water does not boil faster than regular water, it boils hotter.

Example: Cooking Macaroni
Salt water has a higher boiling point than normal water, so when it does start boiling, it boils at a higher temperature, which cooks the macaroni faster.
Anonymous Profile
Anonymous answered
It's Chemistry 101; The addition of salt to water does NOT decrease the boiling point, it, in fact, increases it.  Here is the answer, as defined by Wikipedia:    "It comes to a boil slower (i.e. Increases the boiling temperature), this increases the possible cooking temperature and so will cause foods boiled in salt water to cook faster. Pure solutions will generally have lower boiling points than mixtures. Adding sugar to the water will have a similar effect but would not be nearly as nice to cook food in!  However, if water is heated up to a high temperature and then the salt is added it could cause the entire pot to start boiling as a result of the salt acting as nucleation sites."
Anonymous Profile
Anonymous answered
No it doesn't.  The presence of a solute (i.e. Salt ) in a solvent (water) changes  the temperature at which the solvent's vapor pressure becomes equal to the atmospheric pressure (definition of boiling point).  So the solution (solvent + salt) has an effective higher boiling point.    The reason boiling salt water cooks things faster is because the salt water is boiling at a higher temperature than tap water!  So your pasta is dancing around in boiling salt water that is say 220°F compared to regular water that is only 212°F.
Anonymous Profile
Anonymous answered
Salt water
Anonymous Profile
Anonymous answered
Salt water boils slower than regular tap water but salt water boils things (food) faster than regular tap water
Anonymous Profile
Anonymous answered
I think you people that write stupid stuff should quit it because some of us need this for school! So back OFF!
Water boils faster because nothing is in it just h2o
Anonymous Profile
Anonymous answered
Yes, salt makes water boil faster because iodized water when placed under heat needs a lot of hydrogen bonds to help weaken the charge in Na and Cl, there by forming more bonds and creating more molecules that aid in making the water heat up fast. Also salt helps in reducing the freezing point of water, therefore if salt has already been added to water and is boiled it doesn't take much time compared to when boiling pure water.
Anonymous Profile
Anonymous answered
NO, Salt Water takes longer to boil than tap water....because the salt changes the point point of the water:)
Anonymous Profile
Anonymous answered
Actually, the addition of salt increases the boiling point of water and depresses the freezing point (hence why you use salt to melt ice outside). But you would have to add a lot of salt to make a huge change in boiling point.
Kimberli Newman Profile
Kimberli Newman answered
Ok, people. All your theories sound great but my son and I just did the experiment. We were very precise in measuring our water, salt and timing. Geuss what, the salted water boiled first....go figure.
Anonymous Profile
Anonymous answered
Well I thought the same thing but my grandmother told me that it doesn't make the water boil faster it makes the noodles have a better taste lol. Not sure which one is right.
Nitin Khanna Profile
Nitin Khanna answered
Regular water. Because the salt content in the salty water absorbs some of the heat and so it takes more heat and thus longer time to boil the water. Try it at home!

~eNjoy~

Anonymous Profile
Anonymous answered
I guss not Because When you boil the solt with the water is will consist of kinetic energy .But water Does not. That is why the water boils faster than salt water.
Anonymous Profile
Anonymous answered
Slat water boils faster than tap water. I have done an experiment in science class.
Anonymous Profile
Anonymous answered
Salt water may get hoter but the boiling temp. Stays the same who ever done the experiment and got salt water had done it incorrect

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