Naturally occurring uranium contains about 0.7% of the fissionable isotope 235U, with almost all the rest 238U. Since gaseous 235UF6 diffuses about 0.4% faster than 235UF6 , diffusion produces a mixture that is slightly enriched in 235UF6 . Multiple diffusion steps – hundreds are needed – can then produce the necessary 235U concentration for use in reactors or bombs. A sample of 235UF6 gas in a 15,000 L cylinder exerts a pressure of 167 kPa. The root-mean-square speed of the 235UF6 molecules is 159 m/s. What is the temperature of the sample of 235UF6 gas? _______K

Chemistry: An Atoms First Approach
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ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
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Chapter18: The Nucleus: A Chemist's View
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Naturally occurring uranium contains about 0.7% of the fissionable isotope 235U, with almost all the rest 238U. Since gaseous 235UF6 diffuses about 0.4% faster than 235UF6 , diffusion produces a mixture that is slightly enriched in 235UF6 . Multiple diffusion steps – hundreds are needed – can then produce the necessary 235U concentration for use in reactors or bombs.

A sample of 235UF6 gas in a 15,000 L cylinder exerts a pressure of 167 kPa. The root-mean-square speed of the 235UF6 molecules is 159 m/s. What is the temperature of the sample of 235UF6 gas?

_______K

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