10 mol x 200 kJ/mol = 2000 kJ
S = 20 kJ/K
This is the necessary heat for this reaction.
Just set up the balanced equation to solve this. C3H6 (s) + (9/2)O2(g) ---> 3CO2(g) + 3H2O (l). Now it is only a matter of adding and subtracting the appropriate formation values.