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Standard molar enthalpy of formation of ...

Standard molar enthalpy of formation of CO_2 is equal to:

A

Zero

B

The standard molar enthalpy of combustion of gaseous carbon

C

The sum of standard molar enthalpies formation of CO and `O_2`

D

The standard molar enthalpy of combustion of carbon (graphite)

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The correct Answer is:
D
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