Round 9: Tossup 20

A “power-compensated” form of this technique uses negative feedback to maintain isothermal sample and reference crucibles. A method for determining ligand binding affinities combines titration with this technique. (10[1])Peaks generated by this technique’s “differential scanning” type (10[2])indicate phase transitions. The equation [read slowly] “q equals C-sub-V times delta T” can be used with this technique to determine enthalpy change. This technique can be performed with two (10[1])nested Styrofoam (10[1])cups to determine whether a process is exothermic or endothermic. For 10 points, identify this technique whose “bomb” type can be used to measure the heat flows associated with a chemical reaction. ■END■

ANSWER: calorimetry [accept bomb calorimetry or differential scanning calorimetry or isothermal titration calorimetry or power-compensated calorimetry; accept answers with word forms like calorimeters; prompt on DSC; prompt on ITC]
<Editors, Chemistry> | Packet I
= Average correct buzz position

Back to tossups

Buzzes


Summary

TournamentEditionTUHConv. %Neg %Average Buzz
UK (North)UK5100%20%63.20
UK (South)UK8100%13%69.63
Northern CaliforniaUS4100%0%45.75
Southern CaliforniaUS786%14%47.50
Eastern Canada (1)US5100%0%45.00
Eastern Canada (2)US9100%11%53.33
FloridaUS3100%0%48.33
Great LakesUS12100%42%64.42
Lower Mid-AtlanticUS989%0%54.13
Upper Mid-AtlanticUS2100%0%36.00
MidwestUS9100%11%56.00
NorthUS4100%0%66.00
NortheastUS1090%10%60.22
PacificUS786%57%75.00
South CentralUS786%29%68.17
SoutheastUS1385%23%52.27
Upstate NYUS5100%20%66.80