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Chemistry, 18.02.2020 17:15 griffinadrianne946
Diamond and graphite are two crystalline forms of carbon. At 1 atm and 25∘C diamond changes to graphite so slowly that the enthalpy change of the process must be obtained indirectly. Determine △ Hrxn for C(diamond) → C(graphite) with equations from the following list: (1) C(dianond)+O2(g)⟶CO2(g)ΔH=−395.4kJ (2) 2CO2(g)⟶2CO(g)+O2(g)ΔH=566.0kJ, (3) C(graphite)+O2(g)→CO2(g)ΔH=−393.5kJ , (4) 2CO(g)⟶C(graphite)+CO2(g)ΔH=−172.5k J.
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Diamond and graphite are two crystalline forms of carbon. At 1 atm and 25∘C diamond changes to graph...
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