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Gas effusion is the process by which a gas under pressure escapes from one compartment of a container to another through a small opening, as illustrated here.
The relative rates of effusion for gases obey Graham's law (see Problem 5.57). The isotope undergoes fission when bombarded with neutrons. However, its natural abundance is only percent. To separate it from the more abundant isotope, uranium is first converted to , which is easily vaporized above room temperature. The mixture of the and gases is then subjected to many stages of effusion. Calculate the separation factor, that is, the enrichment of relative to after one stage of effusion. Real Gases Exhibit Deviations from Ideal Behavior at High Pressures
Find each probability for a standard normal random variable Z.
We can find this in several ways.
1. With a TI-83
(or similar calculator),
Select DISTR menu,
then the NORMALCDF command (finds the probability that a normal random variable takes values between my two given numbers.)
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