What Is the Partial Pressure of Oxygen (PO₂) When the Air

question 17

Multiple Choice

What is the partial pressure of oxygen (PO₂) when the air in a testing chamber is mixed so that its oxygen content is 10% and its overall air pressure is 400 mm Hg?

• A) 400 mm Hg
• B) 82 mm Hg
• C) 40 mm Hg
• D) 4 mm Hg

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