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Density of supercooled water

2015-12-08View Original

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As the title suggests, the density of water should theoretically be 1000. However, using an Excel spreadsheet to calculate the density of supercooled water under high pressure yields a value lower than 1000; for example, at 17 MPa and 340°C, the density is around 600. I’m not quite sure whether such values are correct
Reply #22015-12-08
No, I guess it’s calculated this way: supercooled water is determined by subtracting the saturated vapor pressure
Reply #32015-12-08
:Lol, basics of fluid mechanics. At four degrees Celsius and standard atmospheric pressure, the density of distilled water is 1000 kg/m3. As the temperature rises, the volume of water increases continuously until the saturation temperature corresponding to that pressure is reached. As the volume per unit mass of water increases, its density decreases.
Reply #42015-12-08
If you’re still interested, check out IAPWS IF97: http://wenku.baidu.com/link?url=irZ9Q6oj1rMdV9NJ0gVFhzJX3X75tW6C7MrMk_nYKT2Uidy7qt5XcLxb4UZR34oV0eDucjpUltKjN8Lfz2lqMQ8KjYm87kIO9GK67Rh8CG7
Reply #52015-12-08
I took a look at A+; it’s 600
Reply #62015-12-09
This density is reasonable; those interested can use online tools for calculating the properties of water to figure it out. http://www.htps.com.cn/steamproperty.jsp

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