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MMLU-Pro / 12133 / Octane burns in theoretical air (21% O_2, 79% N_2) by the followingcombustion…

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question

Octane burns in theoretical air (21% O_2, 79% N_2) by the followingcombustion equation: C_8H_18 + 12.5O_2 + 12.5(3.76)N_2= 8CO_2 + 9H_2O + 47N_2 What is the theoretical air-fuel ratio?

category

engineering

options

  1. 14.7g air/g fuel
  2. 15.1g air/g fuel
  3. 13.4g air/g fuel
  4. 20.3g air/g fuel
  5. 28.96g air/g fuel
  6. 10.0g air/g fuel
  7. 18.5g air/g fuel
  8. 12.5g air/g fuel
  9. 16.2g air/g fuel
  10. 47g air/g fuel

src

stemez-Thermodynamics

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