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How can a chemical be a liquid below its freezing point, for example Sodium Acet
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Topic: How can a chemical be a liquid below its freezing point, for example Sodium Acet (Read 3136 times)
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DHohrath
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How can a chemical be a liquid below its freezing point, for example Sodium Acet
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on:
April 12, 2008, 03:33:15 PM »
I am doing a project for when sodium acetate is supercooled and then when disturbed goes from a liquid at room temperature to a crystallized solid in an exothermic reaction that leaves it quite warm. This is how handwarmers work. I was just hoping someone could give me some ideas on how this process works so I can better explain it in my project.
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Arkcon
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Re: How can a chemical be a liquid below its freezing point, for example Sodium
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Reply #1 on:
April 12, 2008, 04:15:13 PM »
To help you understand how a solution can be supersaturated, and not crystallized, you should try to look up how crystallization affects the entropy of a system.
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Last Edit: April 12, 2008, 07:11:36 PM by Arkcon
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Hey, I'm not judging. I just like to shoot straight. I'm a man of science.
ARGOS++
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Re: How can a chemical be a liquid below its freezing point, for example Sodium Acet
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Reply #2 on:
April 12, 2008, 06:41:29 PM »
Dear
DHohrath
;
Beside of possible Entropy Phenomena - We have such already discussed under:
"
Who can interpret ??
”
Good Luck!
ARGOS
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How can a chemical be a liquid below its freezing point, for example Sodium Acet