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Posted by leza scott, on 02-05-2011 09:46, , Guest

Posted by Chemist, on 01-05-2011 14:31, , Guest
Ummm, about the confusing egg comments: adding salt to water will raise the boiling. Look online or in a textbook, and you will be provided an explanation. The explanation I understand best for this situation is as follows: when salt is added to water, it breaks into its two pieces Na+ and Cl-; because these ions are charged, and water molecules are charged, the extra charges floating around means greater attraction between the particles. A greater attraction means the particles need to be given more energy to break away from each other and become gaseous.

Posted by amanda, on 30-04-2011 13:49, , Guest
Anybody whose taken chemistry would know that adding salt to water raises the boiling point of water so it takes longer for the water to reach the boiling point, but it'll be at a higher temperature so whatever you're boiling wont take as long. Adding more salt wont raise it higher than its already going to be though. Maybe you should all go back to high school and learn something.

Posted by Liz, on 21-04-2011 14:43, , Guest
Hmm... Adding salt to the water RAISES the boiling point. Your stuff cooks faster because it is actually boiling at HIGHER temperature. It doesn't make it boil faster, it just makes things cook faster.. by the way, water does NOT have the highest specific heat of anything. Really specific heat has nothing to do with it, it is all about boiling point elevation.

Posted by Sara, on 20-04-2011 12:03, , Guest
Actually salt increases the temperature at which water boils. It is a principle called boiling point elevation. When you add a solute (salt) to a solution (water) it increases the temperature at which the solution boils. However, it takes a LOT of salt to alter the boiling point appreciably. If you are adding a Tbsp of salt to increase the boiling point you're not going to get too far. It only increases the temp tenths of a degree. The opposite of this principle is freezing point depression - this is why we salt roads during the winter; salt lowers the temperature at which water freezes.

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