5 ms·
Point 1 above greatly understates the case. Water just sitting in a glass is constantly creating and destroying hydronium and hydroxide ions, and bare protons.
by labster 3y ago
Point 1 above greatly understates the case. Water just sitting in a glass is constantly creating and destroying hydronium and hydroxide ions, and bare protons. Not to mention the carbon dioxide that gets dissolved as carbonic acid which can dissociate to bicarbonate.
On the other hand, its tough to talk about new water because under thermodynamics, all atoms of the same isotope at the same energy state are completely fungible, so it’s hard to say anything meaningful about the history of a molecule.
- rcpt 3y agoIf a few water molecules are destroyed and replaced created over a long time then is it still the same glass of water?
- mensetmanusman 3y agoNothing is ever the same at room temperature if you are counting atoms.
- alex_young 3y agoThe famous glass of Theseus’ water eh? https://en.m.wikipedia.org/wiki/Ship_of_Theseus https://en.m.wikipedia.org/wiki/Ship_of_Theseus
- deleted 3y ago[deleted]
- labster 3y agoIs the Glass of Theseus half-full or half-empty?
- developer93 3y agoTwice as big as it needs to be
- adonovan 3y agoTrue, but even Feynman talks about "new photons" when describing scattering.