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← ScienceWhich mechanism increases Uranium-235 enrichment following gaseous diffusion?
A)Kinetic energy-based isotope separation✓
B)Thermal expansion of uranium hexafluoride
C)Neutron absorption cross-section variations
D)Centrifugal force exceeding gravitation
💡 Explanation
Kinetic energy isotope separation causes faster diffusion of lighter isotopes through a membrane. Because U-235 hexafluoride is slightly lighter, it diffuses faster than U-238, therefore enrichment happens. This effect is kinetic rather than involving temperature driven-expansion.
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