A heliox deep-sea diving mixture delivers an oxygen partial pressure of 0.20 atm when the total pressure is 13.0atm .What is the partial pressure of helium in this mixture?
pO2 + pHe = Ptotal
To find the partial pressure of helium in the heliox mixture, we need to subtract the oxygen partial pressure from the total pressure.
Partial pressure of helium = Total pressure - Oxygen partial pressure
Given:
Total pressure = 13.0 atm
Oxygen partial pressure = 0.20 atm
Substituting these values into the equation:
Partial pressure of helium = 13.0 atm - 0.20 atm
Partial pressure of helium = 12.8 atm
Therefore, the partial pressure of helium in the heliox mixture is 12.8 atm.