Q3 (a) Consider the combustion of ethyne in sufficient supply of oxygen. C2H2(g) + O2(g) CO2(g) + H2O, AH = - 1309.5 kJ/mole...(1) C(s) + O2(g) CO2(g), AH = - 393.5 kJ/mole....(2) H2(g) + 1/2O2(g) H2O(9), AH = -285.8 kJ/mole....(3) And answer the following questions, (0) Balance the given reaction (1) and Calculate the enthalpy of formation of ethyne (C2H2) from the given data. [2] [4]