A breathing mixture used by deep-sea divers contains helium, oxygen, and carbon dioxide What is the partial pressure of oxygen at #101.4# #kPa# if #P_(He)# = #82.5# #kPa# and #P_(CO2)# = #.4# #kPa#?
2 Answers
The partial pressure of oxygen in the mixture is 18.5 kPa.
Explanation:
The total pressure is the sum of the partial pressures of the given gases.
Rearrange the equation to isolate
The total pressure of
Explanation:
In a little more detail, the total pressure is the sum of the partial pressures of the gases present:
We want to know the partial pressure of oxygen,
Substituting in the known values gives the answer shown above.