Answer Happy

Trimix is a breathing gas mixture used for deep diving consisting of an oxygen, nitrogen, and helium blend. Helium is included in the breathing gas as a partial substitute for nitrogen when descending to depths around and below 100ft because it is an inert gas, meaning it does not react with our bodies at conventional scuba depths, unlike nitrogen which leads to narcosis symptoms that become increasingly serious as the diver descends, leading to possible unconsciousness and death at and below 300ft. Determine the partial pressure of O2, He, and N2 in a 150L SCUBA tank filled with Trimix to a pressure of 15MPa at 300K. See the table below for the breathing gas composition Species Oxygen Helium Nitrogen Gravimetric Analysis 32.9% 6.8% 60.3%