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Round 1: Tossup 18

The reduced temperature is equivalent to the actual temperature divided by a temperature described by this adjective. By differentiating the Van der Waals equation twice, one can find that the pressure described by this adjective (-5[1])is a-over-27-b-squared. Oscillatory isotherms vanish at a state described by this adjective where one of the coexistence curves end. Decaffeination (15[1])utilizes a form of (*) carbon dioxide being [emphasize] beyond a state described by this adjective. At a state described by this adjective, the gas and liquid phases become indistinguishable. For 10 points, name this adjective (10[1])describing the point at the far right of a phase diagram. ■END■ (0[2])

ANSWER: critical [accept critical temperature or critical pressure or critical point or supercritical fluid]
<Science - Chemistry, Rohan Ganeshan> | VAULT II Packet 01
= Average correct buzzpoint

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Buzzes

PlayerTeamOpponentBuzzpointValue
Simon ZhangLexington BWellesley34-5
Aadi PudasainiLexington ABelmont A5415
Ulises ShahBelmont BMansfield A8810
Saisabari RameshWaltham BMansfield B1000
Alex KulikMansfield BWaltham B1000

Summary

TournamentEditionMatchHeardConv. %Power %Neg %Avg. Buzz
VAULT II at Georgia Tech2026-01-24✕6100%67%33%56.67
Triangle Cup2026-03-13✓3100%0%33%95.67
VAULT II at Eden Prairie HS2026-03-13✓3100%0%33%83.00
VAULT II at McGill2026-03-13✓475%0%25%76.33
VAULT II at UCSB2026-03-13✓580%40%40%70.00
VAULT II Northern UK2026-04-24✓333%0%67%68.00
VAULT II Southern UK2026-04-24✓475%25%0%60.00
VAULT II at Harvard2026-04-30✓450%25%25%71.00
VAULT II at MINT2026-06-19✓580%0%20%83.00
VAULT II Stanford Online2026-07-17✓8100%50%13%60.13