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Question
#51158. TheAlphaWolf
asks:
Is it true that water will not get hotter once it begins boiling?
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romeomikegolf
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I think this may be something to do with the specific heat cpacity of water, and the fact that as it reaches boiling point it converts to steam.
Sep 22 04, 11:02 PM
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lothruin
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In order to get water hotter than the boiling point, one must "superheat" the water. I was recently watching a documentary about urban legends, and the exploding microwaved hot water was featured. If you heat distilled water in the microwave, it will keep getting hotter without boiling, and as soon as it is disturbed, a large percentage of it will automatically convert to steam, which causes the explosion. Fortunately for most of us, non-purified water will boil in the microwave, and so will not explode.
Sep 23 04, 3:22 PM
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Baloo55th
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If you heat it under pressure, the boiling point will rise. 100 degrees is boiling point at sea level and standard pressure. It's less high up in the Andes where the pressure is less. A superheated steam loco has its water boiling into steam well above 100 degrees and this gives a greater steam pressure to do the work.
Sep 23 04, 4:27 PM
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