A level: Kinetic Theory QuestionsQ5. (a) The volume of air in a fully expanded pair of human lungs is 5.0 × 10–3 m3. The pressure of the air in the lungs is 1.0 × 105 Pa and its temperature is 310 K. Calculate:
(4 marks) (b) Air is a mixture of oxygen and nitrogen molecules. The mass of an oxygen molecule is greater than the mass of a nitrogen molecule. State and explain the effect this has on the mean square speeds of the oxygen and nitrogen molecules in the lungs.
(3 marks) (Total 7 marks) |
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