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Why does it take longer to boil water in a new saucepan than in a saucepan already in use?
Wiki User
∙ 13y ago
As soon as any of the salt dissolves in the water, the boiling point of
the water will begin to rise -- by about one half degree Celsius for every 58 grams
of salt dissolved per kilogram of water.
In fact, any non-volatile soluble
substance will raise the boiling point of water. That is why antifreeze (ethylene glycol)
provides boiling protection in winter as it simultaneously provides freezing
protection in the summer.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoIt takes longer to boil water in a new saucepan than in a saucepan already in use because the new saucepan will have to heat up first. It starts out cooler while the one that is in use is already quite hot.
Wiki User
∙ 11y agoIt depends. Salt water, about 1 lb. salt per gallon, requires about 10% more heat to raise it to the boiling point, which is only 2 degrees higher than water without salt in it. This necessarily needs more time to absorb more heat. A pot of water with a tablespoon of salt in it though does not need more than a fraction of a second more than a pot with the same amount of fresh water in it to boil. A pot of water without a lid will actually take much longer to boil because any escaping water vapor from the uncovered pot actually cools the water remaining in the pot. So, to make a pot of water boil faster, cover it.
To get into the thermodynamics of it. By adding salt to the water you are adding weight to the solution. 1 lb of salt added to 8.33 lbs {1 gallon} of water raises the weight of one gallon to about 9.2 lbs or slightly more than 10% requiring the additional heat to raise the temperature. (Salt has a slightly lower specific heat than water). So lb for lb salt water needs less heat than fresh water, but gallon for gallon it needs more.
Wiki User
∙ 9y agoNo, it doesn't. Salt raises the density of water which raises the time it takes for it to boil. Also, because it raises the density, salt water will actually freeze faster than fresh water.
Wiki User
∙ 12y agoBecause water itself is NOT a conductor of heat. Salt is. The conductivity of the solution is increased by addition of salt.
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How much salt do you put in to make the water boil faster?
Adding salt to water will make it take longer for the water to boil. You should wait until the water is already boiling to add salt.
The tradition for putting sixpence in Christmas pudding?
boil the money in a saucepan full of water on the stove
What the word for when you add food to a saucepan containing water heated to 212F?
To boil or to blanch before refreshing
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A hard boiled egg can be prepared in several ways. One is to put the egg into a saucepan of cold water and then bring it to the boil for several minutes before eating. Another way, is to put the egg into a saucepan of already boiling water, bring it back to the boil, and cook until the desired state is achieved. The typical range of time for cooking is 3 to 5 minutes.
Why does sparkling water boil faster than water?
there are already bubbles in it
Does pasta cook faster when the water has already started to boil?
Yes. If you place pasta in already boiling water it will be quicker, because usually you time the cooking of pasta from when the water begins to boil.
Why puttung lid on saucepan makes the water in it comes to boil come to boil more quickly?
Putting a lid on the pan makes the water boil quicker because the heat is trapped, less is escaping, so the water's temperature has more time to increase, so it gets more hot and boils faster.
Do larger amounts of water take longer to boil?
Yes
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To cook spaghetti, bring a saucepan of salt water to the boil. Place the spaghetti in the saucepan and cover with a tight fitting lid. Cook for about 15-20 minutes. Drain the pasta and serve with your favorite sauce.
Why does it take a less time to boil little ammounts of water?
It takes less time to boil little amounts of water because there is less water to boil. The more water in the pot, the longer it takes to heat up.
Does it take more heat to heat water or to boil water?
It takes more heat to boil water than to simply heat water. Unless the water is already at its boiling point.
Will water with salt evaporate faster than water without salt experiment?
Water with salt will actually take longer than water without salt to evaporate. This is due to boiling point elevation. If you put a solute into water, it will make it more difficult to boil, and therefore will boil at a higher temperature. Since it takes longer for the salt water to boil, it will take longer for it to evaporate as well
