An environmental chemist got an idea that two serious pollutants (CO and NO) of the automobile exhaust can be converted to less harmful gases CO2 and N2. The reaction is CO(g) + NO(g) CO2(g) + 1/2 N2(g), ΔHo = ? The enthalpy of this reaction as calculated from the following date is CO(g) + 1/2 O2(g) CO2(g), ΔHo = -283kJ / mol CO(g) + O2(g) 2NO2(g), ΔHo = 180.6kJ / mol

  • (A) -102.4 kJ
  • (B) -322.1 kJ
  • (C) -373.3 kJ
  • (D) -400.0 kJ;
Correct Answer: C

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