21% oxygen and 79% nitrogen. 50% oxygen and 50% nitrogen. 79% oxygen and 21% nitrogen.
This is very complicate to calculate. Simply multiply the pressure by the gaz percentage. The partial pressure is always 1 bar.
Convulsions due to the high partial pressure of oxygen. A lack of attention or a foolish behavior due to the high partial pressure of nitrogen. Localized pain, tingling and numbness due to the formation of bubbles in our body.
Stop drinking alcohol. There's nothing much you can do. Simply ascend as much as necessary in order to stop the narcosis.
The density is the same than at the surface. The density is three times denser than at the surface. The density is four times denser than at the surface.
24 minutes. 32 minutes. 48 minutes.
Yes, no problem. No, this might be difficult. I don't know.
Monitor regularly your diving computer and avoid the dives with decompression stop. You must plan dives with decompression stop. You must stay dry. You must not dive.
A dive where we ascend progressively in order to dive longer time and to avoid the decompression stop. A dive where we stay deep and where we ascend straight to the depth of 5 meters. A dive where we descend progressively.
This has no particular benefit. We can get out of the water faster. We manage to dive deeply and long time, safely.