Question

A newly discovered planet has an atmospheric pressure of 900 mm/Hg. The oxygen concentration is 18%. What is the pO2

Answer 1

162 mmHg

Step-by-step explanation:

Step 1: Given data

Atmospheric pressure (P): 900 mmHg

Oxygen concentration: 18%

Step 2: Calculate the partial pressure of oxygen (pO₂)

In a gaseous mixture, an oxygen concentration of 18% corresponds to a mole fraction of X(O₂) = 0.18. We can calculate the partial pressure of oxygen using the following expression.

pO₂ = P × X(O₂)

pO₂ = 900 mmHg × 0.18 = 162 mmHg