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MMLU-Pro / 12132 / The combustion equation for octane burning in theoretical air (21% O_2 and 79%…

Problem

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question

The combustion equation for octane burning in theoretical air (21% O_2 and 79% N_2) is C_8H_18(1) + 12.5O_2 + 12.5(3.76)N_2 \rightarrow 8CO_2 + 9H_2O + 47N_2 Determine the adiabatic flame temperature for liquid octane burningwith 200 percent theoretical air at 25°C. Use the followingdata to solve the problem: h^0_f = Standard enthalpy of formation (allenthalpies are in kcal/mol) DATA SPECIES h°_f (Kcal/mol) h25°C H139°C H117 / °C h838°C C_8H_18 - 27093.8 --- --- --- --- C0_2 - 42661.1 1015.6 8771 7355 5297 H_2O - 26218.1 1075.5 7153 6051 4395 N_2 0 940.0 5736 4893 3663 O_2 0 938.7 6002 5118 3821

category

engineering

options

  1. 1,100°C
  2. 1,450°C
  3. 1,171°C
  4. 1,610°C
  5. 1,327°C
  6. 1,500°C
  7. 1,233°C
  8. 1,050°C
  9. 1,300°C
  10. 1,393°C

src

stemez-Thermodynamics

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Source and history

upstream_id / Original problem ID
12132
task_id
457954ae-d13f-5801-abdf-d25d012de687
task_key
default--test--12132
task_revision_id
1
config / split
default / test

Official source

initial import