• flambonkscious@sh.itjust.works
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    4 months ago

    If only boiling water weren’t stupidly expensive…

    I remember having a little carbon block drink bottle at one point, which claimed to filter out the larger of bacteria (maybe it was viruses - they’re a lot larger, aren’t they?) - I wonder if they’re effective (not that we really consider throwing away carbon blocks progress!)

        • ryannathans@aussie.zone
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          4 months ago

          Actually doing the math, each kg of water takes about 4.2 kilojoules to heat by one degree, or 336kJ to heat from 20C to 100C.

          Each kg of boiling water (already at 100C) takes about 2250 kJ to turn to steam. Pretty wild difference because it takes a lot of energy to break the hydrogen bonds.