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General Forum

  1. Standard memberwolfgang59
    surviving
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    29 Feb '20 22:16
    Ever wonder what happens if you dump 25kg of
    dry ice into a swimming pool to cool it down?

    The Moscow party-goers found out.
    Three suffocated.

    https://www.bbc.com/news/world-europe-51680049

    Darwin awards?
  2. Subscribersonhouse
    Fast and Curious
    slatington, pa, usa
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    29 Feb '20 22:35
    @wolfgang59
    Well did the pool cool down at least?
  3. SubscriberPachman
    Ghost Eater
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    29 Feb '20 22:39
    LoL
  4. Standard memberwolfgang59
    surviving
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    29 Feb '20 23:03
    @sonhouse said
    @wolfgang59
    Well did the pool cool down at least?
    I can't imagine that even that amount would have had
    much effect on a swimming pool!
    Perhaps one of the physicists here can do the calculation?
  5. SubscriberEarl of Trumps
    Pawn Whisperer
    My Kingdom fora Pawn
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    29 Feb '20 23:12
    Here's the translation of her tweet



    didenko.katerina
    29!
    One of the few times in my life when I celebrate my birthday!
    Thanks to everyone who
    has already congratulated๐Ÿ˜˜ I can
    not answer everyone - but just know, I am very pleased))) And who is not, I expect congratulations in the form of ๐Ÿ’–๐Ÿ’–๐Ÿ’–
    --------

    Nice looking gal. Shame
  6. SubscriberPachman
    Ghost Eater
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    29 Feb '20 23:27
    A proper Russian should have been studying chess ๐Ÿค”
  7. SubscriberKegge
    Drown all midgets
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    01 Mar '20 10:21
    @wolfgang59 said
    Ever wonder what happens if you dump 25kg of
    dry ice into a swimming pool to cool it down?

    The Moscow party-goers found out.
    Three suffocated.

    https://www.bbc.com/news/world-europe-51680049

    Darwin awards?
    From the article: Ms Didenko is known for posting tips about how to save money on pharmaceutical

    She succeeded. Three people never need pharmaceuticals anymore.
  8. Standard memberbadradger
    Scallywag
    the pie shop
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    01 Mar '20 10:35
    @kegge said
    From the article: Ms Didenko is known for posting tips about how to save money on pharmaceutical

    She succeeded. Three people never need pharmaceuticals anymore.
    should be renamed Co3.....Choked only three
  9. Standard memberdrewnogal
    Rocky 2008-2019
    Ecofreak
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    01 Mar '20 13:24
    @wolfgang59 said
    I can't imagine that even that amount would have had
    much effect on a swimming pool!
    Perhaps one of the physicists here can do the calculation?
    Pity they didn’t have a friend like Ponderable there.
    Talk about a freak accident!
  10. Joined
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    112856
    01 Mar '20 14:14
    @drewnogal said
    Pity they didn’t have a friend like Ponderable there.
    Talk about a freak accident!
    Indeed. He'd likely have come up with the right amount to accomplish the mission. Oh, and he'd probably said, "Don't put that in until I'm a few kilometers away. I'll call ya when I'm there." ๐Ÿ˜ฒ
  11. SubscriberPonderable
    chemist
    Linkenheim
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    01 Mar '20 15:34
    So now I have read the thread...

    We are talking about 25 kg of CO2, that is about 569 moles or at room conditions or 12,5 m3.

    A concentration of 8% in air is enough to kill a person. So this 12,5 m3 woud suffice to poison 100 m3 of air....
    We can assume that the Co2-concentration directly above the water is much more affected than in the whole room....

    On the cooling: dry ice has a sublimation enthalpie of 25 kJ/mol, so the 25 kg have a heat of 14,2 MJ with a heat capacity of 37 J/mol*K we get another 2.1 MJ so we have 16.3 MJ cooling power. Witha heat capacity of water of 4,2 KJ/kg*K we can vool 3,88 m3 water for ONE Kelvin. That would be a cube of 1,57 m length or a rather small swimming pool.


    In short words: The chemist would have strongly recommended to use cold water to cool down the pool....
  12. Standard memberdrewnogal
    Rocky 2008-2019
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    01 Mar '20 20:53
    @Ponderable

    Thank you, I’ve copy and pasted your analysis to show my ex husband. He’ll appreciate that as we were talking about it earlier.
  13. SubscriberVery Rusty
    Treat Everyone Equal
    Halifax, Nova Scotia
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    01 Mar '20 21:35
    @ponderable said
    So now I have read the thread...

    We are talking about 25 kg of CO2, that is about 569 moles or at room conditions or 12,5 m3.

    A concentration of 8% in air is enough to kill a person. So this 12,5 m3 woud suffice to poison 100 m3 of air....
    We can assume that the Co2-concentration directly above the water is much more affected than in the whole room....

    On the c ...[text shortened]... short words: The chemist would have strongly recommended to use cold water to cool down the pool....
    You actually sound like a chemist! ๐Ÿ˜‰

    -VR
  14. hull
    Joined
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    3806
    02 Mar '20 00:07
    @badradger

    Ha ha ha love ur dry u mer lo l
  15. SubscriberEarl of Trumps
    Pawn Whisperer
    My Kingdom fora Pawn
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    02 Mar '20 00:18
    @Ponderable
    On the cooling: dry ice has a sublimation enthalpie of 25 kJ/mol, so the 25 kg have a heat of 14,2 MJ with a heat capacity of 37 J/mol*K

    Are you swearing?


    ๐Ÿ˜ต
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