Problem: Calculate the approximate enthalpy change, ΔH rxn, for the combustion of methane:                           CH   4 + 2O2 → 2H2O + CO2Given that-ΔH for CH4 = -74.53 kJ/molΔH for O2 = 0 kJ/molΔH for H2O = -241.8 kJ/molΔH for CO2 = -393.5 kJ/mol

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Problem Details

Calculate the approximate enthalpy change, ΔH rxn, for the combustion of methane:

                           CH   4 + 2O2 → 2H2O + CO2

Given that-

ΔH for CH4 = -74.53 kJ/mol

ΔH for O= 0 kJ/mol

ΔH for H2O = -241.8 kJ/mol

ΔH for CO= -393.5 kJ/mol

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