At 25C, the following heats of reaction .12 are known 2C1F + O2 +C120 + F20 A H= 167.4 kJ/mol A 2C1F3 + 202 C12O + 3F20 H= 341.4 kJ/mol A 2F2 + 02 2F20 H= -43.4 kJ/mol At the same temperature, calculate AH for the reaction * CIF + F2 CIF: (b 2.5) KJ/mol 217.5+ kJ/mol 130.2- kJ/mol 108.7 - kJ/mol 217.5