WAEC - Chemistry (2008 - No. 22)
Which of the following set of equations could be used to represent the standard enthalpy of formation of glucose?
6C (s) + 6H 2(g) + 3O2(g) → C 6H12O6(s)
6CO2(g) + 6H2O (l) → C6H12O6(s) + 6O 2(g)
6C(g) + 6H 2(g) + 3O2(g) → C6H12O 6(s)
6C(g) + 6H 2(g) + 3O2(g) → C 6H 12O 6(aq)