Item 10 Constant Part A The enthalpy change for the reaction

Item 10 Constant Part A The enthalpy change for the reaction of titanium metal with gaseous iodine is given by the following 2tis) + 3 12(g)-+ 2 Tilg(s) Hm\"-839 kJ What is the enthalpy change for the reaction below? T 13(3) Ti(s) + 32 12(9) View Available Hint(s) O -1.68 x 102 kJ 0-4.20 x 102 kJ +8.39× 102 kJ +4.20 x 102 kJ Submit Provide Feedback

Solution

Ans : 4.20 x 10² KJ

The reaction for which the enthalpy change is desired is half of the revese thermochemical equation mentioned in the question.

So the enthalpy change will be given as :

= -(-839) / 2 KJ

= +4.20 x 10² KJ