O-LevelChemistryRates of Reaction5070/12 · May/June 2023 · Q141 Mark
Hydrogen can be produced by reacting methane with steam. CH4 + 2H2O → CO2 + 4H2 Using the bond energies in the table, what is the enthalpy change of reaction, ∆H?
A–620 kJ/mol
B–238 kJ/mol
C+238 kJ/mol
D+620 kJ/mol
✓ Correct answer
C: +238 kJ/mol
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