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   Cassandra Granade 🏳️‍⚧️ (xgranade@wandering.shop)'s status on Friday, 13-Dec-2024 07:31:44 JST Cassandra Granade 🏳️‍⚧️

   17 J is a fuck of a lot of energy.

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     Canageek (canageek@wandering.shop)'s status on Friday, 13-Dec-2024 07:45:15 JST Canageek

     in reply to

     @xgranade ..... I'm used to seeing things in KJ/mol....

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     Cassandra Granade 🏳️‍⚧️ (xgranade@wandering.shop)'s status on Friday, 13-Dec-2024 07:48:43 JST Cassandra Granade 🏳️‍⚧️

     in reply to

     • Canageek

     @Canageek Even not dividing by molar number, 17 J is a lot of energy to just have sitting there.
     Similar kind of thing to how if you see a Coulomb just sitting there, you run the fuck away.

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     Canageek (canageek@wandering.shop)'s status on Friday, 13-Dec-2024 09:04:00 JST Canageek

     in reply to

     @xgranade So I've done reactions relating on the 800 kJ range.... (Al + Fe2O3 -> Al2O3)

     Which to be fair is a lot of energy but not like a terrifying amount.

     17 J is only enough to raise the temperature of 1g water by a little under 1°C.

     are you sure you're not missing a prefix there?

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     Cassandra Granade 🏳️‍⚧️ (xgranade@wandering.shop)'s status on Friday, 13-Dec-2024 09:11:44 JST Cassandra Granade 🏳️‍⚧️

     in reply to

     • Canageek

     @Canageek I am *quite* sure. It may not be a lot from a caloric perspective, but I can say from personal experience that 17 J is a lot.

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     Canageek (canageek@wandering.shop)'s status on Friday, 13-Dec-2024 09:19:35 JST Canageek

     in reply to

     @xgranade not sure how you're defining a lot then, because that's very little energy from a chemistry perspective? Like even for one bond. C-H is about 100 kcal, C-C ~80 kcal.

     1 cal is a little over 4 J

     so C-H is on the order of 400,000 J

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     Canageek (canageek@wandering.shop)'s status on Friday, 13-Dec-2024 09:30:29 JST Canageek

     in reply to

     @xgranade so I just went over my shelf and discovered that I did not keep any of the textbooks that would be useful for double checking my memory with regards to units and amounts of energy.

     so the only textbook I currently own with that sort of information is my grandfather's that he used when he was a teacher XD

     It did confirm I remember my energy is correctly, and it's not like they've changed since 1969 XD

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     Cassandra Granade 🏳️‍⚧️ (xgranade@wandering.shop)'s status on Friday, 13-Dec-2024 09:41:18 JST Cassandra Granade 🏳️‍⚧️

     in reply to

     • Canageek

     @Canageek True, but chemical potentials are just fucking gargantuan compared to the mechanical or electrical energy you're more likely to encounter in day to day life. I think its fair to say than something on the order of a millionth of a lightning bolt is huge. A compact surge protector can absorb like 500 J, so 17 J isn't too out of line with home mains power surges.

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     Canageek (canageek@wandering.shop)'s status on Friday, 13-Dec-2024 09:53:55 JST Canageek

     in reply to

     @xgranade ahhhh. See I'm thinking of fire as a day to day that people encounter day to day, and a candle flame is multiple J, like it wouldn't take long to raise a mL of water by 1 degree at all, and no one would say a candle is a lot.

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     Cassandra Granade 🏳️‍⚧️ (xgranade@wandering.shop)'s status on Friday, 13-Dec-2024 09:56:35 JST Cassandra Granade 🏳️‍⚧️

     in reply to

     • Canageek

     @Canageek I mean, I would if I stuck my finger in it! But yeah, I take the point.

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     Canageek (canageek@wandering.shop)'s status on Friday, 13-Dec-2024 09:59:35 JST Canageek

     in reply to

     @xgranade

     Only if you hold it there! I mean, my Mom let us use beeswax candles for Ukrainian Easter eggs when I was a little kid, it's pretty hard to burn yourself.

     AND since I've got the video handy: Lesson one you learn when doing glassblowing: Toching fire

     https://youtube.com/shorts/DMsZc_EJ4ao

     (I miss doing this SO MUCH. It feels warm and wet and nice)