The following table shows the enthalpies and Gibbs energies of formation of three metal oxides at 25

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The following table shows the enthalpies and Gibbs energies of formation of three metal oxides at 25 °C.

(a) Which of these oxides can be most readily decomposed to the free metal and O2(g)?

(b) For the oxide that is most easily decomposed, to what temperature must it be heated to produce O2(g) at 1.00 atm pressure?

PbO(red) AgO ZnO AfH, kJ mol-1 -219.0 -31.05 -348.3 A&G, kJ mol-1 - 188.9 - 11.20 -318.3

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General Chemistry Principles And Modern Applications

ISBN: 9780132931281

11th Edition

Authors: Ralph Petrucci, Jeffry Madura, F. Herring, Carey Bissonnette

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