Diamond and graphite are two crystalline forms of carbon. At 1 atm and 25°C, diamond changes to graphite Нехn for slowly that the enthalpy change of the process must be obtained indirectly. Determine A So rxn C(diamond)Cgraphite) with equations from the following list: (1) С(diamond) + O,g) (2) 2 CO2(g) CO2(g) 2 CO(g)02(g) ДН %—D —395.4 kJ = AH 566.0 k.J + (3) C(graphite)+02(s) -»CO2(g) (4) 2 CO(g)C(graphite)+CO2(g) ДН %3D —393.5 kJ AH=-172.5 kJ ДНov kJ overall
Diamond and graphite are two crystalline forms of carbon. At 1 atm and 25°C, diamond changes to graphite Нехn for slowly that the enthalpy change of the process must be obtained indirectly. Determine A So rxn C(diamond)Cgraphite) with equations from the following list: (1) С(diamond) + O,g) (2) 2 CO2(g) CO2(g) 2 CO(g)02(g) ДН %—D —395.4 kJ = AH 566.0 k.J + (3) C(graphite)+02(s) -»CO2(g) (4) 2 CO(g)C(graphite)+CO2(g) ДН %3D —393.5 kJ AH=-172.5 kJ ДНov kJ overall
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter5: Principles Of Chemical Reactivity: Energy And Chemical Reactions
Section5.8: Product- Or Reactant-favored Reactions And Thermodynamics
Problem 1.1ACP: The standard enthalpies of formation of KNO3(s) and K2S(s) are 494.6 kJ/mol and 376.6 kJ/mol,...
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