Florida ocean temperatures peak to almost 100 degrees amid heatwave: "You really can't cool off" - eviltoast
  • inspired@kbin.social
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    1 year ago

    This is really interesting and I think there is a lot of support for the body temperature point. I was curious about whether the method of deriving 0F is insensitive to pressure changes and I can’t find any evidence of that. But I don’t know enough about chemistry or physics myself. Do you know, or have any details on where you learned this?

    • CherenkovBlue@iusearchlinux.fyi
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      1 year ago

      So I was a little off on the temperature chosen for the body, but the Wikipedia page has some good details: https://en.m.wikipedia.org/wiki/Fahrenheit

      Re: freezing temperature of brine and pressure sensitivity, of course it is sensitive but we are talking about MPa-GPa of pressure, way beyond small pressure changes due to changes in altitude. You can get started by looking at physical chemistry of solutions if you are interested! A good place to start is “freezing point depression” and “boiling point elevation” of solutions. Also, single component phase diagrams: here it is for water.