Question: From the thermodynamic data in Appendix 3, calculate the DH values for the following decompositions: (a) MgCO3(s) MgO(s) 1 CO2(g) (b) CaCO3(s) CaO(s)

From the thermodynamic data in Appendix 3, calculate the DH° values for the following decompositions:
(a) MgCO3(s) → MgO(s) 1 CO2(g)
(b) CaCO3(s) → CaO(s) 1 CO2(g)
Which of the two compounds is more easily decomposed by heat?

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a H H o f MgO H o f CO 2 H o f MgCO 3 H 1 6018 kJmol 1 ... View full answer

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