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A beam of O2 molecules start together as a uniform, cohesive beam. The pressure is 1.8...

A beam of O2 molecules start together as a uniform, cohesive beam. The pressure is 1.8 × 103 torr, the temperature is 300 K, and the diameter of an O2 molecule is approximately 3.6 × 10−10 m. For how long will half the molecules remain unscattered? (You may assume that all particles have a speed equal to the mean speed.)

Answer: 4*10^-5s (Just unsure how to get to it)

science   Advanced-Physics   
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