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MMLU-Pro / 3555 / Assume all gases are perfect unless stated otherwise. Note that 1 atm = 1.013 25…

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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 μ\mu at 1.00 bar and 50∘C50^{\circ} \mathrm{C} given that $(\partial H / \partial p)_T=-3.29 \times 10^3 \mathrm{~J} \mathrm{MPa}^{-1} \mathrm{~mol}^{-1}$ and $C_{p, \mathrm{~m}}=110.0 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}$.
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 μ at 1.00 bar and 50^(∘)C given that $(\partial H / \partial p)_T=-3.29 \times 10^3 \mathrm{~J} \mathrm{MPa}^{-1} \mathrm{~mol}^{-1}$ and $C_{p, \mathrm{~m}}=110.0 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}$.
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 $\mu$ at 1.00 bar and $50^{\circ} \mathrm{C}$ given that $(\partial H / \partial p)_T=-3.29 \times 10^3 \mathrm{~J} \mathrm{MPa}^{-1} \mathrm{~mol}^{-1}$ and $C_{p, \mathrm{~m}}=110.0 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}$.

category

chemistry

options

  1. 26.7$\mathrm{K} \mathrm{MPa}^{-1}$
  2. 34.7$\mathrm{K} \mathrm{MPa}^{-1}$
  3. 29.9$\mathrm{K} \mathrm{MPa}^{-1}$
  4. 31.5$\mathrm{K} \mathrm{MPa}^{-1}$
  5. 32.2$\mathrm{K} \mathrm{MPa}^{-1}$
  6. 24.3$\mathrm{K} \mathrm{MPa}^{-1}$
  7. 35.0$\mathrm{K} \mathrm{MPa}^{-1}$
  8. 28.6$\mathrm{K} \mathrm{MPa}^{-1}$
  9. 27.5$\mathrm{K} \mathrm{MPa}^{-1}$
  10. 33.1$\mathrm{K} \mathrm{MPa}^{-1}$

src

scibench-atkins

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Source and history

upstream_id / Original problem ID
3555
task_id
204010f8-a362-5f98-b423-e216c3695814
task_key
default--test--3555
task_revision_id
1
config / split
default / test

Official source

initial import