ThermochemistryHard

Question

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

Standard molar enthalpy of formation CO2 and the standard molar enthalpy of combustion of carbon (graphite)
C(graphite) + O2(g)  → CO2(g)

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