Standard molar enthalpy of formation of `CO_(2)` 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 O_(2)`
D. The standard molar enthalpy of combustion of carbon (graphite)

Answer

D

Explanation

Standard molar heat enthalpy (`H^@)` of a compound is equal to its standard heat of formation from most stable states of initial components.