Explain the following

Diamond, graphite and fullerenes are crystalline forms of carbon

 

 

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 (diamond) (graphite) with equations from the following list: (1) C(diamond) + O2(g) → CO2(g) (2) 2 CO2(g) → 2 CO(g) + O2(g) (3) C(graphite) + O2(g) → CO2(g) (4) 2 CO(g) → C(graphite) + CO2(g) AH=-395.4 kJ AH = 566.0 kJ AH =-393.5 kJ AH =-172.5 kJ AHoverall- k/

1 out of 10 attemp Enter your ans wer in the provided box 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. DetermineA for rxn (diamond)- → C (graphite) C with equations from the following list: (1) Cdia (2) 2CO2(g)→2CO(g ) + O2(g) (3) C(graphite) +02(g)→CO2(g) (4) 2C0(g)→C(graphite) + CO2(g) AH AH-566.0 kJ AH--393.5 kJ AH--172.5kJ =-395.4 kJ (diamond) +02(g) → CO2(g) AH overall = kJ