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MMLU-Pro / 12055 / Heats of reaction can be calculated from the heats of formationof the reactant…

Problem

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

question

Heats of reaction can be calculated from the heats of formationof the reactant and product species. Using the followingheats of formation, calculate the heat of reaction for thecombustion of methane Heats of formation(@ 291 K and 14.7psia) C + 2H_2 \rightharpoonupCH_4(g)\DeltaH_f= 18,240 cal/g mol C + O_2 \rightharpoonupCO_2(g)\DeltaH_f= 94,450 cal/g mol 2H_2 + O_2 \rightharpoonup2H_2O(1)\DeltaHf= 68,370 cal/g mol

category

engineering

options

  1. 158,000 cal/g mol CH_4
  2. 110,000 cal/g mol CH_4
  3. 140,000 cal/g mol CH_4
  4. 144,580 cal/g mol CH_4
  5. 130,200 cal/g mol CH_4
  6. 125,300 cal/g mol CH_4
  7. 165,000 cal/g mol CH_4
  8. 150,250 cal/g mol CH_4
  9. 135,500 cal/g mol CH_4
  10. 120,450 cal/g mol CH_4

src

stemez-Thermodynamics

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Source and history

upstream_id / Original problem ID
12055
task_id
b22a9668-a47c-5cbd-8683-e3667c390425
task_key
default--test--12055
task_revision_id
1
config / split
default / test

Official source

initial import