Human Lungs Have Evolved to Breathe Oxygen at a Pressure

Human lungs have evolved to breathe oxygen at a pressure as that in the atmosphere,0.21 atm.If a particular heliox mixture to be carried by a scuba diver is at a pressure of 7.00 atm,what should be the partial pressure due to helium in order to maintain the pressure due to oxygen at 0.21 atm?

A) 0.21 atm
B) 7.00 atm
C) 6.79 atm
D) 7.21 atm
E) none of the above

Correct Answer:

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Access For Free