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can anyone tell me if lemonade's freezing point is higher or lower than water's? |
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i would guess lower. because if you add salt to water it boils at a higher temperature and it freezes at a lower temperature. this is basically because the sodium molecules interfere with the sublimation between solid, liquid, and gas. this interference causes the water to need more energy to boil, or less energy to freeze. this is also the principle behind adding antifreeze to your radiator. my hypothesis is that adding the lemonade to the water is essentially the same as adding molecules to interfere with water's boiling and freezing points. thus it would take a lower temperature than water to freeze and a higher temperature to boil. your freezer in your kitchen is more than cold enough to freeze lemonade (about -20degrees Centigrade). |
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should be the same, but if you put sugar, or was it salt, on a frying pan it increases the boiling temp, so I don't really know.. |
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this is also the principle to why you pour rock-salt on Ice to melt it. as the salt mixes with the ice, it lowers the required temperature for the water to remain frozen, so it melts. |
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i would wager that if you disolve enough sugar or salt into a glass of water, you could prevent your kitchen freezer from freezing it. hmmmm... i'm gonna try it. hmmmm... |
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hahahah conflicting replies EAT THAT! |
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Well they are a couple of gradeschool kids by the name of Hung and Hong, but at least it's a start. It's a fascinating science. |
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With salt anyways, say you have a piece of ice in the water at 0 degrees C. It stays the same size, it's in equilibrium; an equal amount of water molecules are freezing and melting. If you add salt, it 1) affects the 'vapor pressure' of the liquid water, slowing the freezing process, and 2) the foreign Na+ and Cl- molecules interfere with the formation of the orderly lattice structure that makes up ice. I'm not sure what would happen with lemonade. Does the stuff actually dissolve? Or is it really in substrate form, suspended in the water? |
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this is amazing that means i can basically make a glass of water with lemonade ice in it with out using an ice tray sweet beans |
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What? |
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ok so i put a glass of water and lemonade in the freezer i can take it out after the lemonade freezes and before the water freezes! then i'll have a glass of lemonade iced water |
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Oh, heh, I don't think their experiment was very accurate. |
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What about making ice cream with rock salt in the ice? It's suposed to make the ice colder. I thought. |
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so i tested it and i was right. the salty water is not frozen but the fresh water is starting to freeze on the top. the salt i added has effectively lowered the freezing point of the water to below the temp of the freezer. therefore i predict that your lemonade will in fact freeze at a lower temp than fresh water. |
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well i would guess that the act of melting ice, takes heat energy from the surrounding environment. since the surrounding environment is largely cream and milk and sugar, the ice steals heat energy from the cream and milk, cooling it and melting the ice. just like how when you sweat, the evaporation of the water from your skin is using the heat energy from your body to evaporate thus expending the heat energy and cooling you. |
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so in summary. ice (solid) + heat energy = melting = liquid liquid + heat energy = evaporation = vapor (steam) the energy must come from the surrounding environment thus cooling the surrounding air or cream and milk or your skin or what have you. |
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If there is a crop of fruit that is in danger of being ruined by freezing temperatures, a method to prevent it is flooding the fields with water. Since the water is freezing, going from a higher, to a lower energy state, it keeps the air above just warm enough so that the fruit doesn't freeze. |
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I think this thread may have the best title ever concevied. Just who the hell is a "lemonade expert"? |
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that doesn't make sense. lemonade is water-soluble, water-based. you'll just make really watery lemonade. it will all freeze at the same time. |
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If you add an impurity to water, it will not freeze at the same temperature. Simple as, matey. Although i am not a "lemonade expert". |
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yeah like if you drink some vodka you weren't supposed to drink and then you filled it up with water to make it look like you didn't and then put it in the freezer there will be ice chunks floating in that vodka |
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I thought water boils faster when salt is added - that's what mothers all over the world think at least, adding salt to water to make it boil faster. |
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It will boil hotter, cooking whatever is in it at a higher temperature, which might result in 'faster' cooking. |
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i know that lemonade made from pure alcohol does not freeze easily |
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if you add salt to snow it freezes faster. it was used here in the old days when people didn't have coolers to make ice cream. the salt was added to the snow and a container with ice cream would be put in that snow. |
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Nothing really makes it freeze 'faster' or 'slower', it's all about how it changes the freezing point. Salt will lower the freezing point. Otherwise they wouldn't spray it on roads to keep the ice away. |
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it's a conspiracy |
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