Standard molar enthalpy of formation, ∆ f H ⊖ is just a special case of enthalpy of reaction, ∆ r H ⊖ . Is the ∆ r H ⊖ for the following reaction same as ∆ f H ⊖ ? Give reason for your answer. CaO(s) + CO 2 (g) → CaCO 3 (s); ∆ f H ⊖ = –178.

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Standard molar enthalpy of formation, ∆ f H ⊖ is just a special case of enthalpy of reaction, ∆ r H ⊖ . Is the ∆ r H ⊖ for the following reaction same as ∆ f H ⊖ ? Give reason for your answer. CaO(s) + CO 2 (g) → CaCO 3 (s); ∆ f H ⊖ = –178.3 kJ mol –1

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Correct answer: C. No,since CaCO 3 has been formed from other compounds and not from its constituent elements.

Correct Option is : (C) No,since CaCO 3 has been formed from other compounds and not from its constituent elements.

Standard molar enthalpy of formation, ∆ f H ⊖ is just a special case of enthalpy of reaction, ∆ r H ⊖ . Is the ∆ r H ⊖ for the following reaction same as ∆ f H ⊖ ? Give reason for your answer. CaO(s) + CO 2 (g) → CaCO 3 (s); ∆ f H ⊖ = –178.3 kJ mol –1

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