Question
Unlike most other thermodynamic state functions, this quantity is defined to be zero at absolute zero. For 10 points each:
[10e] Name this measure of a system’s disorder.
ANSWER: entropy [or absolute entropy of formation; or S]
[10h] The other state functions are defined to be zero at this temperature, the thermodynamic standard state. Please give your answer rounded to the nearest integer in kelvins or degrees Celsius, but do not give the temperature of STP, which is lower.
ANSWER: 298 Kelvin [or 25 degrees Celsius; accept 298.15 Kelvin or 298.2 Kelvin; reject “STP” or “0” or “273”]
[10m] The entropy at other pressures is calculated by integrating the coefficient of this process times volume. Lord Kelvin first measured absolute zero by realizing the coefficient of this process is one over temperature for an ideal gas.
ANSWER: thermal expansion [or thermal expansion coefficient or coefficient of thermal expansion; prompt on expansion; prompt on heating or cooling]
<Adam Silverman, Science - Chemistry> ~22774~ <Editor: Adam Silverman>
Data
Summary
| Tournament | Edition | Exact Match? | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|---|---|
| 2024 PACE NSC | 06/08/2024 | Y | 36 | 15.00 | 100% | 28% | 22% |