Question: In example 17.5, we found that a fraction equal to 0.01409 of a beam of argon atoms would successfully traverse a slotted-disk speed selector if

In example 17.5, we found that a fraction equal to 0.01409 of a beam of argon atoms would successfully traverse a slotted-disk speed selector if the entering distribution is Maxwell-Boltzmann at 300 K and the selector transmits all atoms with speeds in the range from 347 m s to 353 m s. If the rotation speed of the disks is changed so that speeds in the range (450-e) ms C (450 + e) ms are permitted to traverse the selector, what must be in order for the fraction of the total atoms transmitted to be the same as that in Example 17.5?

Update: I answered it correctly. Use example 17.5 in the book. The approximation calculation can be used by switching 350 for 450 and 353-347 to 450+e-(450-e).

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