Given the following thermochemical data
1.C(s)+O2-->CO2 -394kJ/mol
2.2CO(g)+O2(g)-->2CO2(g) -282kJ/mol
3.O2(g)-->2O2(g) +490kJ/mol
4.CO(g)-->C(g)+O(g) +964kJ/mol
Calculate the enthalpy change for
C(s) --> C(g)
my work
HR
C(s) ----------------------------------------------------> C(g)
|O2(g) |O2(g)
|-394kJ | +490kJ
CO2(g)------->CO(g)+1/2 O2(g)----------------->C(g)+2O(g)
+141kJ +1209kJ
The result is correct but I want to know if I hv anything wrong with the energy cycle