Problem: Hydrogen and methanol have both been proposed as alternatives to hydrocarbon fuels. Which fuel contains the most energy in the least mass?

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Combustion of hydrogen and methanol:


  • 2H2 + O2→  2H2O
  • 2CH3OH + 3O→  2CO2 + 4H2O


ΔH°rxn=ΔH°f, prod-ΔH°f, react


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Hydrogen and methanol have both been proposed as alternatives to hydrocarbon fuels. Which fuel contains the most energy in the least mass?

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