How much oxygen does a plant give off?

Question

Could you put a few potted plants in a submarine and stay underwater indefinitely, or is there a way to tell how much o2 is given by a plant depending on the size?

Answer 1

We use chemicals to strip CO2 and make O2 on the submarines, the number of plants would be unmanageable, and without the sun there would be no photosynthesis to help them.

Answer 2

Plants give off one mole of oxygen (32 g) for every mole of carbon dioxide (44 g) and water (18 g) that they absorb via photosynthesis (generating 1/6 mole of glucose in the process).

Answer 3

Plants produce less oxygen than people and animals use because they're metabolism is slower and they use some of the oxygen they produce themselves.

The plants need to outnumber the people pretty considerably.

Answer 4

In the sub, it would be probably dark all the time and the plants would die.

Answer 5

Well all I know is that the plants are doing a great job. With a gas detector the outside air is always 20.9% . Never changes as solid as a rock,and the plants also grow especially when they have plenty of CO2.