ThermochemistryMedium
Question
The standard molar enthalpy of formation of CO2 is equal to
Options
A.zero
B.the standard molar enthalpy of combustion of gaseous carbon.
C.the sum of standard molar enthalpies of formation of CO and O2.
D.the standard molar enthalpy of combustion of carbon (graphite).
Solution
$C\left( \text{Graphite} \right) + O_{2}(g) \rightarrow CO_{2}(g);\Delta_{f}{H^{o}}_{CO_{2}(g)} = \Delta_{c}{H^{o}}_{C\left( \text{Graphite} \right)}$
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