Question

Note to moderator: Read answerline carefully. Paul Dirac created a method for this process that tangentially injects a mixture of hydrogen and another reactant at the speed of sound into a vortex tube. Lasers with wavelengths around 16 micrometers are used to excite molecules for this process and facilitate the dissociation of a fluoride ion in SILEX procedures. SWUs are units that quantify the (-5[1])effectiveness (-5[1])of this process. Ernest Lawrence invented the (*) calutron at the Y-12 plant to perform an electromagnetic (10[1])form of this process. (10[3]-5[1])A compound commonly called “hex” is forced through (10[1])a semi-permeable membrane in one technique for this process. “Zippe-type” devices used for this process have rendered gaseous diffusion obsolete. (10[1])For 10 points, (10[1])name this process (10[1])that may use gas centrifugation to increase the relative amount of an element’s 235 isotope in natural (-5[1])samples. (10[1])■END■ (10[1]0[2])

ANSWER: uranium enrichment [accept uranium isotope separation or molecular laser isotope separation of uranium or atomic vapor laser isotope separation of uranium; accept separation of uranium isotopes by laser excitation; accept U in place of “uranium”; prompt on enrichment or isotope separation by asking “of what element?”; prompt on AVLIS or MLIS; prompt on gaseous diffusion until read; prompt on gas centrifugation until read; reject “uranium purification”]
<SM, Chemistry>
= Average correct buzz position

Buzzes

Summary

TournamentEditionExact Match?TUHConv. %Power %Neg %Average Buzz
2024 Chicago Open07/28/2024Y1283%0%33%104.20