Antarctic Temperature Drops Below The Freezing Point Of CO2

Weather Forecast Vostok, Antarctica | Vostok Weather | Wunderground

This does not mean that dry ice will accumulate, because the low partial pressure of CO2 in the air means that frozen CO2 molecules will sublimate at an average rate as fast as they can freeze.

http://www.standnes.no/chemix/english/phase-diagram-co2.htm

About stevengoddard

Just having fun
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12 Responses to Antarctic Temperature Drops Below The Freezing Point Of CO2

  1. Andyj says:

    Coldest Temperature on Earth
    the temperature in Vostok, Antarctica, dropped to nearly -89.2 °C, the lowest temperature ever recorded on Earth.” -89.2 °C. World Book Encyclopedia. New York ..

    A little pee on your bonfire Ste.
    Vostock ~11,200′ Alt. Means an air pressure drop of around 25%. That will affect the sublimation by a degree or so. But hey. A Mars like Earth and going off the present weather/Solar effects means colder to come in future years!

    • Look closely at the phase diagram and try again.

      • Andyj says:

        Lower pressures means sublimation temperature.
        Sea level = -78C
        0.1 atmosphere, say, -100C
        Air pressure at Vostock @ 3420m has to mean a couple of degree’s lower than -78C?
        Rough:- 100-78=21C over 90%. (25/90)*21+78=
        -84C
        I was the one who pointed CO2 freezing. We might be almost there.
        What am I getting wrong?

      • It is a log scale on the y-axis. A 25% drop would lower the freezing point to about -80C. The temperature is -81C.

  2. Andyj says:

    What’s 3C amongst friends” 🙂

  3. Eric Simpson says:

    Regardless of CO2 freezing points, a big point is that we’ve hit -114°F again. That ties the current recent record. Let’s see if we push below that.

  4. Gonkulator says:

    I’ve got it 🙂 We can send all the CO2 to Antarctica, freeze it, then sell it back to grocery stores 🙂
    We could make a killing and save the planet at the same time 🙂

    • Daryl de Mestre says:

      While making lots more CO2, CO, and lots of other nasty stuff shipping it to and fro.Unintended consequences? Oops! Save the planet? Leave it alone. It will take care of itself.

  5. Kelly Scarff says:

    Hello, I’m a government contractor and I’d like to use one of your images in a report for the Department of Energy. If possible, please e-mail me and I will provide the details (name of the report, synopsis, etc.). Thanks!

  6. Mark K says:

    That low is way off the record. Aug 10, 2010 it was -135F in Antarctica. Check APOD- http://apod.nasa.gov/apod/ap131211.html

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