Using the data given below determine the energy of reaction where metallic copper is derived from copper (II) sulfide by reacting with hydrogen.
2Cus + 3O2 --> 2CuO + 2SO2 ^H= -807.18 KJ
2CuO + C ---> 2Cu + CO2 ^H= -83.05 KJ
3H2 + SO2 --> H2S + 2H2O (I) ^H= -92.32 KJ
C + O2 ----> CO2 ^H= -393.51 KJ
2H2 + 02 ---> H2O ^H= -571.70 KJ
2Cus + 3O2 --> 2CuO + 2SO2 ^H= -807.18 KJ
2CuO + C ---> 2Cu + CO2 ^H= -83.05 KJ
3H2 + SO2 --> H2S + 2H2O (I) ^H= -92.32 KJ
C + O2 ----> CO2 ^H= -393.51 KJ
2H2 + 02 ---> H2O ^H= -571.70 KJ