The cruise altitude of an aircraft is 10,000 m ( 32,800 ft) and the cabin altitudes 2,000 m (6,560 ft). a) Determine the cabin differential pressure i.e. the difference between

pressure inside the cabin and outside the aircraft. Answer in mm Hg or kPa or atm or psi. b) Determine the partial pressure of oxygen inside the cabin and outside the aircraft. Given % of oxygen in air = 21%vol