Why can’t we just harvest the oxygen in H20 and breathe under water
In: Chemistry
The answer about submarines is the right and correct answer.
This question made me wonder just how much energy is needed to do this.
Google says that at rest you consume about 250ml of oxygen per minute. Using the quora link below, it takes about 2.6KWh of energy per minute to generate the oxygen your body needs at rest.
A fully charged Tesla Model 3 battery pack can electrolyze enough oxygen to keep you alive for a bit less than 30 minutes so a portable underwater electrolysis machine isn’t happening any time soon.
[https://www.quora.com/How-much-kWh-is-needed-to-split-one-liter-clear-water-into-hydrogen-oxygen](https://www.quora.com/How-much-kWh-is-needed-to-split-one-liter-clear-water-into-hydrogen-oxygen)
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