Diamond and graphite are two crystalline forms of carbon. At 1 atm and 258C, diamond
Chapter 6, Problem 6.73(choose chapter or problem)
Diamond and graphite are two crystalline forms of carbon. At 1 atm and 258C, diamond changes to graphite so slowly that the enthalpy change of the process must be obtained indirectly. Using equations from the numbered list below, determine DH for C(diamond) - C(graphite) (1) C(diamond) 1 O2(g) - CO2(g) DH 5 2395.4 kJ (2) 2CO2(g) - 2CO(g) 1 O2(g) DH 5 566.0 kJ (3) C(graphite) 1 O2(g) - CO2(g) DH 5 2393.5 kJ (4) 2CO(g) - C(graphite) 1 CO2(g) DH 5 2172.5 kJ
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