We separate U-235 from U-238 by fluorinating a sample of uranium to form UF6 (which is a gas) and then taking advantage of the different rates of effusion and diffusion for compounds containing the two isotopes. Calculate the ratio of effusion rates for 238UF6 and 235UF6. The atomic mass of U-235 is 235.054 amu and that of U-238 is 238.051 amu.

Video transcript

Hey everyone. So here we have an isotope of helium three with the following mask and it's separated from helium fork with the following mass. Never asked calculate the ratio of infusion rates for helium three and helium four. So the ratio of the infusion rates is going to be raped. A bye bye. Rate be it's going to be equal to the square root of the molar mass A. B. What about Mueller mass of eight? They're going to the rate of helium three by the rate of helium four. Able to the square root And the mother Master Helium four 4.00 260 atomic mass units. What about the mass of helium 3? Which is 3.016 atomic mass unit. So for the ratio we're gonna have the rate of helium three by the rate of helium four. It's going to be equal to 1.152. Thanks for watching my video. And I hope it was helpful.