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Solved: From the thermodynamic data in Appendix 3,

Chapter 21, Problem 33P

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QUESTION:

From the thermodynamic data in Appendix 3, calculate the \(\Delta H^{\circ}\) values for the following decompositions:

(a) \(\mathrm{MgCO}_3(s)\ \longrightarrow\mathrm{\ MgO}(s)+\mathrm{CO}_2(g)\)

(b) \(\mathrm{CaCO}_3(s)\ \longrightarrow\mathrm{\ CaO}(s)+\mathrm{CO}_2(g)\)

Which of the two compounds is more easily decomposed by heat?

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QUESTION:

From the thermodynamic data in Appendix 3, calculate the \(\Delta H^{\circ}\) values for the following decompositions:

(a) \(\mathrm{MgCO}_3(s)\ \longrightarrow\mathrm{\ MgO}(s)+\mathrm{CO}_2(g)\)

(b) \(\mathrm{CaCO}_3(s)\ \longrightarrow\mathrm{\ CaO}(s)+\mathrm{CO}_2(g)\)

Which of the two compounds is more easily decomposed by heat?

ANSWER:

Step 1 of 3

 can be calculated by the following formula;

                                               

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