Using data in Appendix L, calculate r G values for the decomposition of MCO 3 to
Question:
Using data in Appendix L, calculate ΔrG° values for the decomposition of MCO3 to MO and CO2 where M = Mg, Ca, Ba. What is the relative tendency of these carbonates to decompose?
Data given in Appendix L
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TABLE 20 Species lodine 12(S) 1₂(g) I(g) 1-(g) ICI(g) Iron Fe(s) FeO(s) Fe₂O3(s, hematite) Fe₂O4(s, magnetite) FeCl₂(s) FeCl3(s) FeS₂(s, pyrite) Fe(CO)5(€) Selected Thermodynamic A,Hº (298.15 K) (kJ/mol) 0 62.438 106.838 -197 17.51 -272 -825.5 -1118.4 -341.79 -399.49 -178.2 -774.0 Values (continued) Sº (298.15 K) (J/K.mol) 116.135 260.69 180.791 247.56 27.78 87.40 146.4 117.95 142.3 52.93 338.1 A-Gº (298.15 K) (kJ/mol) 19.327 70.250 -5.73 -742.2 -1015.4 -302.30 -344.00 - 166.9 -705.3
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Related Book For
Chemistry And Chemical Reactivity
ISBN: 9780357001172
10th Edition
Authors: John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
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