benchmarks.wiki

benchmarks.wiki / Public workspace

MMLU-Pro / 3651 / Assume all gases are perfect unless stated otherwise. Unless otherwise stated,…

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. Unless otherwise stated, thermodynamic data are for 298.15 K. Given the reactions (1) and (2) below, determine $\Delta_{\mathrm{r}} U^{\ominus}$ for reaction (3). (1) H2(g)+Cl2(g)→2HCl(g)\mathrm{H}_2(\mathrm{g})+\mathrm{Cl}_2(\mathrm{g}) \rightarrow 2 \mathrm{HCl}(\mathrm{g}), $\Delta_{\mathrm{r}} H^{\ominus}=-184.62 \mathrm{~kJ} \mathrm{~mol}^{-1}$ (2) 2H2(g)+O2(g)→2H2O(g)2 \mathrm{H}_2(\mathrm{g})+\mathrm{O}_2(\mathrm{g}) \rightarrow 2 \mathrm{H}_2 \mathrm{O}(\mathrm{g}), $\Delta_{\mathrm{r}} H^\ominus=-483.64 \mathrm{~kJ} \mathrm{~mol}^{-1}$ (3) 4HCl(g)+O2(g)→2Cl2(g)+2H2O(g)4 \mathrm{HCl}(\mathrm{g})+\mathrm{O}_2(\mathrm{g}) \rightarrow 2 \mathrm{Cl}_2(\mathrm{g})+2 \mathrm{H}_2 \mathrm{O}(\mathrm{g})
Plain-text mathematical notation (without MathML)
Assume all gases are perfect unless stated otherwise. Unless otherwise stated, thermodynamic data are for 298.15 K.  Given the reactions (1) and (2) below, determine $\Delta_{\mathrm{r}} U^{\ominus}$ for reaction (3).

(1) H₂(g)+Cl₂(g)→2HCl(g), $\Delta_{\mathrm{r}} H^{\ominus}=-184.62 \mathrm{~kJ} \mathrm{~mol}^{-1}$

(2) 2H₂(g)+O₂(g)→2H₂O(g), $\Delta_{\mathrm{r}} H^\ominus=-483.64 \mathrm{~kJ} \mathrm{~mol}^{-1}$

(3) 4HCl(g)+O₂(g)→2Cl₂(g)+2H₂O(g)
Original LaTeX notation
Assume all gases are perfect unless stated otherwise. Unless otherwise stated, thermodynamic data are for 298.15 K.  Given the reactions (1) and (2) below, determine $\Delta_{\mathrm{r}} U^{\ominus}$ for reaction (3).

(1) $\mathrm{H}_2(\mathrm{g})+\mathrm{Cl}_2(\mathrm{g}) \rightarrow 2 \mathrm{HCl}(\mathrm{g})$, $\Delta_{\mathrm{r}} H^{\ominus}=-184.62 \mathrm{~kJ} \mathrm{~mol}^{-1}$

(2) $2 \mathrm{H}_2(\mathrm{g})+\mathrm{O}_2(\mathrm{g}) \rightarrow 2 \mathrm{H}_2 \mathrm{O}(\mathrm{g})$, $\Delta_{\mathrm{r}} H^\ominus=-483.64 \mathrm{~kJ} \mathrm{~mol}^{-1}$

(3) $4 \mathrm{HCl}(\mathrm{g})+\mathrm{O}_2(\mathrm{g}) \rightarrow 2 \mathrm{Cl}_2(\mathrm{g})+2 \mathrm{H}_2 \mathrm{O}(\mathrm{g})$

category

chemistry

options

  1. -150.72$\mathrm{kJ} \mathrm{mol}^{-1}$
  2. -200.36$\mathrm{kJ} \mathrm{mol}^{-1}$
  3. -135.50 kJ mol^{-1}
  4. -220.14 kJ mol^{-1}
  5. -162.80 kJ mol^{-1}
  6. -89.10 kJ mol^{-1}
  7. -97.66 kJ mol^{-1}
  8. -111.92$\mathrm{kJ} \mathrm{mol}^{-1}$
  9. -175.88 kJ mol^{-1}
  10. -125.48$\mathrm{kJ} \mathrm{mol}^{-1}$

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
3651
task_id
d9ff7bf3-4ea3-5221-86d3-4ed70ea0c4a3
task_key
default--test--3651
task_revision_id
1
config / split
default / test

Official source

initial import