Uranium has two naturally occurring isotopes. 238 U has a natural abundance of 99.3% and 235 U has an abundance of 0.7%. It is the rarer 235 U that is needed for nuclear reactors. The isotopes are separated by forming uranium hexafluoride UF6, which is a gas, then allowing it to diffuse through a series of porous membranes. 235 UF6 has a slightly larger rms speed than 238 UF6 and diffuses slightly faster. Many repetitions of this procedure gradually separate the two isotopes. What is the ratio of the rms speed of 235 UF 6 to that of 238 UF6? Express your answer to five significant figures.

Uranium has two naturally occurring isotopes. 238 U has a natural abundance of 99.3% and 235 U has an abundance of 0.7%. It is the rarer 235 U that is needed for nuclear reactors. The isotopes are separated by forming uranium hexafluoride UF6, which is a gas, then allowing it to diffuse through a series of porous membranes. 235 UF6 has a slightly larger rms speed than 238 UF6 and diffuses slightly faster. Many repetitions of this procedure gradually separate the two isotopes. What is the ratio of the rms speed of 235 UF 6 to that of 238 UF6? Express your answer to five significant figures.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Diatomic Gas

Molecule, is a collection of two or more atoms together (which constitute the smallest observable unit) into a pure material. There are some ways to represent the structure of a molecule. Factor symbols represent atoms in Lewis structures, and dots represent electrons that accompany them. A pair of mutual electrons (covalent bond) may be represented by a single dash. The ball-and-stick model depicts the spatial structure of the atoms better.

Question

Uranium has two naturally occurring isotopes. 238 U has a natural abundance of 99.3% and 235 U has an abundance of 0.7%. It is the rarer 235 U that is needed for nuclear reactors. The isotopes are separated by
forming uranium hexafluoride UF6, which is a gas, then allowing it to diffuse through a series of porous membranes. 235 UF6 has a slightly larger rms speed than 238 UF6 and diffuses slightly faster. Many
repetitions of this procedure gradually separate the two isotopes. What is the ratio of the rms speed of 235 UF 6 to that of
238 UF6?
Express your answer to five significant figures.

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