One physical Property that differs for^235 UF_6 and^238 UF_6 is the rate of effu
ID: 1015540 • Letter: O
Question
One physical Property that differs for^235 UF_6 and^238 UF_6 is the rate of effusion of these gases through porous membranes. The lighter^235 UF_6 will effuse faster, resulting in enrichment of this desired isotope after passing through the membrane. The effusion rate of gases can be described by Graham's law, which states that the effusion rate of a particle is inversely proportional to the square of its mass. Use this law to determine relative effusion rates of^235 UF_6 and^238 UF_6. Based on your result, explain why it is necessary in practice to perform this process through hundreds of membrane barriers to achieve useful enrichment.Explanation / Answer
Uranium is actively mined all over the world. However, only a handful of nations are allowed to enrich uranium
The initial phase in improving uranium is to respond a blend of the two isotopes with fluorine gas to make UF6, a thick strong that can be changed over to a gas at generally low temperatures (< 60°C).
Because of their somewhat distinctive masses, UF6 containing uranium-235 and UF6 containing uranium-238 will radiate through a permeable layer at marginally diverse paces. The gas that endures the film will have a mar.ginally higher rate of U-235, while the gas deserted will be advanced in U-238. By gathering the gas that gets through the layer and rehashing the procedure numerous times, the examples will in the end have a sufficiently high extent of U-235 to bolster an atomic chain response.
Present day uranium enhancement plants likewise make utilization of rotators, which takes into consideration usable uranium to be gotten with less reiterations of the sublimation-emanation gathering cycle.
To have more U-235 the process is performed through hundreds of membranes
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