Standard molar enthalpy of formation, Delta_(f)H^(@) is just a special case of enthalpy of reaction, Delta_(r)H^(@). Is the Delta_(r)H^(@) for the following reaction same as Delta_(f)H^(@)? Give reason for your answer. CaO(s) + CO_(2)(g) to CaCO_(3)(s), Delta_(f)H^(@) = -178.3 kJ"mol"^(-1).

Standard molar enthalpy of formation, Delta_(f)H^(@) is just a special

1.	Standard molar enthalpy of formation, Delta_(f)H^(@) is just a special case of enthalpy of reaction, Delta_(r)H^(@). Is the Delta_(r)H^(@) for the following reaction same as Delta_(f)H^(@)? Give reason for your answer. CaO(s) + CO_(2)(g) to CaCO_(3)(s), Delta_(f)H^(@) = -178.3 kJ"mol"^(-1).
Answer» SOLUTION :No, because `CaCO_(3)` is FORMED from other compounds and not from its constituent ELEMENTS.