At high altitude, people experience so called "altitude sickness", which usually starts when the partial pressure of oxygen (Po2) in the air becomes less than 13.3 kPa. The oxygen concentration in dry...

Extracted text: At high altitude, people experience so called "altitude sickness", which usually starts when the partial pressure of oxygen (Po2) in the air becomes less than 13.3 kPa. The oxygen concentration in dry air is constant as 21% by volume from sea level to 21,000 m of altitude. The temperature decreases at a constant rate of 6 °C per 1000 m increase in the altitude. Neglect the effect of partial pressure of water vapor and determine the altitude at which the oxygen partial pressure becomes 13.3 kPa. Also calculate the temperature and the air density at the determined altitude. The molar mass of oxygen is 32.00 g/mol and the average molar mass of dry air is 28.97 g/mol.