Enthalpy of Formation
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The oxidation of ammonia is illustrated by the following equation:
Calculate the enthalpy of reaction, ΔHRxn, based on the given standard heats of formation.
Consider the following equation:
2 ClF3(g) + 2 NH3(g) → 1 N2(g) + 6 HF (g) + 6 Cl2(g) ΔHrxn = –1196 kJ
Determine the standard enthalpy of formation for chlorine trifluoride, ClF3.
N2 + 2 O2 → 2 NO2
Based on the following data.
2 NO → N2 + O2 ΔH = −180 kJ
2 NO + O2 → 2 NO2 ΔH = −112 kJ
2 C2H2 (g) + 5 O2 (g) → 4 CO2 (g) + 2 H2O (l)