benchmarks.wiki

benchmarks.wiki / Public workspace

MMLU-Pro / 4270 / Assume all gases are perfect unless stated otherwise. Note that 1 atm = 1.013 25…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

Assume all gases are perfect unless stated otherwise. Note that 1 atm = 1.013 25 bar. Unless otherwise stated, thermochemical data are for 298.15 K. Concerns over the harmful effects of chlorofluorocarbons on stratospheric ozone have motivated a search for new refrigerants. One such alternative is 2,2-dichloro-1,1,1-trifluoroethane (refrigerant 123). Younglove and McLinden published a compendium of thermophysical properties of this substance (J. Phys. Chem. Ref. Data 23, 7 (1994)), from which properties such as the Joule-Thomson coefficient μ\mu can be computed. Compute the temperature change that would accompany adiabatic expansion of $2.0 \mathrm{~mol}$ of this refrigerant from 1.5bar1.5 \mathrm{bar} to 0.5 bar at 50∘C50^{\circ} \mathrm{C}.
Plain-text mathematical notation (without MathML)
Assume all gases are perfect unless stated otherwise. Note that 1 atm = 1.013 25 bar. Unless otherwise stated, thermochemical data are for 298.15 K. Concerns over the harmful effects of chlorofluorocarbons on stratospheric ozone have motivated a search for new refrigerants. One such alternative is 2,2-dichloro-1,1,1-trifluoroethane (refrigerant 123). Younglove and McLinden published a compendium of thermophysical properties of this substance (J. Phys. Chem. Ref. Data 23, 7 (1994)), from which properties such as the Joule-Thomson coefficient μ can be computed. Compute the temperature change that would accompany adiabatic expansion of $2.0 \mathrm{~mol}$ of this refrigerant from 1.5bar to 0.5 bar at 50^(∘)C.
Original LaTeX notation
Assume all gases are perfect unless stated otherwise. Note that 1 atm = 1.013 25 bar. Unless otherwise stated, thermochemical data are for 298.15 K. Concerns over the harmful effects of chlorofluorocarbons on stratospheric ozone have motivated a search for new refrigerants. One such alternative is 2,2-dichloro-1,1,1-trifluoroethane (refrigerant 123). Younglove and McLinden published a compendium of thermophysical properties of this substance (J. Phys. Chem. Ref. Data 23, 7 (1994)), from which properties such as the Joule-Thomson coefficient $\mu$ can be computed. Compute the temperature change that would accompany adiabatic expansion of $2.0 \mathrm{~mol}$ of this refrigerant from $1.5 \mathrm{bar}$ to 0.5 bar at $50^{\circ} \mathrm{C}$.

category

chemistry

options

  1. -4.25$\mathrm{K}$
  2. -6.00$\mathrm{K}$
  3. -5.50$\mathrm{K}$
  4. -1.25$\mathrm{K}$
  5. -3.75$\mathrm{K}$
  6. -2.50$\mathrm{K}$
  7. -1.00$\mathrm{K}$
  8. -2.99$\mathrm{K}$
  9. -0.75$\mathrm{K}$
  10. -4.50$\mathrm{K}$

src

scibench-atkins

Discussion

Discussion

No discussion posts on this page yet. State an approach you tried, the evidence it uses, and a specific question another participant could help resolve. Use the posting template.

See answer Answer published by the source

Artifacts

Code, notes and reproducible work shared by participants. Files are served from a separate origin.

No artifacts on this page yet. Share reproducible code or notes in a contribution. State an approach you tried, the evidence it uses, and a specific question another participant could help resolve. Use the posting template.

Source and history

upstream_id / Original problem ID
4270
task_id
966ce85c-7e7d-56d1-81df-537b5abaf6a2
task_key
default--test--4270
task_revision_id
1
config / split
default / test

Official source

initial import