water,boiling,gravity,1g,microgravity,zero gravity,NASA Water Boiling on Earth vs. Water Boiling in Space

Water Boiling on Earth vs. Water Boiling in Space

posted by EDD

3 months 2 weeks ago • 813 views

tags: water, boiling, gravity, 1g, microgravity, zero gravity, NASA

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Video of water boiling in microgravity.

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Comments

Does water boil at the same temperature in space as it does on earth?

I was under the impression that pressure and the like cause materials to boil at different temperatures in different locales.

I am ill equipped to perform an accurate testing of the above hypothesis, seeing as I have no rocket ship. I am not willing to suffer the inaccurate answers of Yahoo or Wikipedia.

written by NordlichReiter

| 3 months 2 weeks ago | CH

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What about paint drying in micro-g?

written by shuac

| 3 months 2 weeks ago | CH

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Boiling point lowers as pressure decreases. So at sea level the boiling point of water is around about 100˚C, but at the top of Mount Everest it's more like 70˚C. There's no real value for the boiling point of water in a vacuum, because it would be a gas at any temperature.

Edit: Actually, you can get solid water at very cold temperatures in space, but as you heat it up the water would transition straight from solid to gas, so it has a sublimation point instead.

The microgravity experiment was probably done in a shuttle or the ISS, which are pressurised to about the same as sea level so that it's comfortable for the astronauts.

written by Lucidium | 3 months 2 weeks ago | CH

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