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Black_Moons t1_j68dtok wrote

Reply to comment by Intergalacticdespot in ELI5: why can't we use electricity to kill microorganisms in small amount of water ? by FreshT3ch

If you take carbon and oxygen, burn them to produce CO2, any process you use to get back carbon and oxygen is by definition going to take as much or more energy then you got from burning it.

Chemical bonds all have a certain energy associated with forming and destroying them that must be paid (or released)

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