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Entropy Calculations - Part 2 of 2
Entropy Calculations - Part 2 of 2
19. Chemical Thermodynamics / Entropy Calculations / Problem 2
Lead oxide can be reduced by carbon (graphite) to produce lead metal and carbon dioxide. Determine the temperature at which this reaction is spontaneous.
2 PbO(s) + C(s, graphite) → 2 Pb(s) + CO2(g)
ΔH° (kJ/mol) S° (J/mol•K) ΔG° (kJ/mol)
PbO(s) –217.3 68.70 –187.9
C(s. graphite) 0 5.69 0
Pb(s) 0 68.85 0
CO2(g) –393.5 213.6 –394.4
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