Packet 8: Tossup 20

A constant describing the interaction between two values of this quantity is determined from the dihedral angle in the Karplus equation. (-5[1])J-coupling represents the interaction between two values of this quantity, (15[1])which returns to (-5[1])its equilibrium value during T1 and T2 relaxation. (15[1])Applying an RF (15[1])pulse “flips” states corresponding (15[1])to values of this quantity in (*) NMR. (10[4])In an inhomogeneous magnetic (10[1])field, this quantity took on two discrete values (10[1])in the (10[1])Stern-Gerlach (10[1])experiment. (10[2])In orbital (10[1])diagrams, values of this quantity are represented using up and down (10[2])arrows. (10[1]-5[1])For 10 points, (10[1])name (10[1])this intrinsic (10[1])angular momentum of a particle. (10[2])■END■ (10[6])

ANSWER: spin angular momentum [accept spin-spin coupling or spin relaxation or spin flip or magnetic dipole moment; prompt on magnetic moment; prompt on magnetization before mentioned; prompt on just coupling before mentioned by asking “what quantity’s interaction is represented by coupling?”; reject “electric dipole moment”]
<Science - Chemistry, Rohan Ganeshan> | VAULT II Packet 08
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Summary

TournamentEditionMatchHeardConv. %Power %Neg %Avg. Buzz
VAULT II at Georgia Tech2026-01-246100%33%17%59.33
Triangle Cup2026-03-133100%0%0%76.67
VAULT II at Eden Prairie HS2026-03-13367%0%0%77.50
VAULT II at McGill2026-03-134100%0%0%85.50
VAULT II at UCSB2026-03-135100%20%0%66.20
VAULT II Northern UK2026-04-243100%33%0%61.00
VAULT II Southern UK2026-04-244100%25%25%63.75
VAULT II at Harvard2026-04-303100%33%33%68.33
VAULT II at MINT2026-06-195100%0%20%91.40
VAULT II Stanford Online2026-07-178100%25%38%65.88