Calculate the change in Enthalpy H for a reacti... - SS2 Chemistry Chemical Thermodynamics Question
Calculate the change in Enthalpy (ΔH) for a reaction given the following information:
Reaction: 2H2(g) + O2(g) → 2H2O(g)
ΔHf° (H2O(g)): -241.8 kJ/mol
ΔHf° (H2(g)): 0 kJ/mol
ΔHf° (O2(g)): 0 kJ/mol
ΔH = 2 × ΔHf° (H2O(g)) - [2 × ΔHf° (H2(g)) + ΔHf° (O2(g))]
= 2 × (-241.8 kJ/mol) - [2 × 0 kJ/mol + 0 kJ/mol]
= -483.6 kJ/mol
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