Study the following two reactions. Select all that apply.
C (graphite) + O2 (g) → CO2 (g) + 94.05 kcal
C (diamond) + O2 (g) → CO2 (g) + 94.50 kcal
What could you infer from the information given above?
a The enthalpy of CO2 is greater than the reactants.
b E2 - E1 is negative.
c Graphite and diamond have equal enthalpy.
d Diamond must have lower internal energy.
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