Problem: Methanol (CH3 OH) has been suggested as a fuel to replace gasoline.How does methanol compare to octane with respect to global warming?

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Combustion (burning) of octane, C8H18:

C8H18(l) + 25/2 O2(g) → 8 CO2(g) + 9 H2O(l)          ΔHrxn = -5074 kJ/mol

Combustion (burning) of methanol, CH3OH:

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Methanol (CH3 OH) has been suggested as a fuel to replace gasoline.

How does methanol compare to octane with respect to global warming?

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