21. Kinetic Theory of Ideal Gases
Root-Mean-Square Velocity of Gases
10:29 minutes
Problem 18.61
Textbook Question
Textbook QuestionThe escape speed from the Earth is 1.12 x 10⁴ m/s (Section 8–7). So a gas molecule traveling away from Earth near the outer boundary of the Earth’s atmosphere would, at this speed, be able to escape from the Earth’s gravitational field and be lost to the atmosphere.
(c) Can you explain why our atmosphere contains oxygen but not helium?
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