, the pressure is about 3 x 10-6 torr and the temperature is roughly 250 K. Assuming, for simplicity, that the air consists entirely of oxygen, calculate the mean free path under these conditions. What is the average collision frequency?

, the pressure is about 3 x 10-6 torr and the temperature is roughly 250 K. Assuming, for simplicity, that the air consists entirely of oxygen, calculate the mean free path under these conditions. What is the average collision frequency?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter19: Temperature, Thermal Expansion And Gas Laws

Section: Chapter Questions

Problem 39PQ

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Question

An altitude of 150 km is the lowest altitude where a satellite could successfully orbit the earth.
At 150 km, the pressure is about 3 x 10-6
torr and the temperature is roughly 250 K. Assuming, for
simplicity, that the air consists entirely of oxygen, calculate the mean free path under these
conditions. What is the average collision frequency?

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