There are two important isotopes of uranium: 235U and 238U. These isotopes have different atomic masses and react differently. Only 235U is very useful in nuclear reactors. One of the techniques for separating them (gas diffusion) is based on the different RMS speeds of uranium hexafluoride gas, UF6.
The molecular masses for UF6 with 235U and UF6 with 238U are 349.0 g/mol and 352.0 g/mol, respectively.
What is the ratio of RMS speeds?
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There are two important isotopes of uranium: 235U and 238U. These isotopes have different atomic mas...
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