8. Thermochemistry - Part 3 of 3
8. Thermochemistry / Hess's Law / Problem 13
Given the following formation reactions and their enthalpies of formation
(reaction 1) 1/2 H2 (g) + 1/2 Cl2 (g) → HCl (g) ΔH = –92.3 kJ
(reaction 2) C (s) + 2 Cl2 (g) → CCl4 (g) ΔH = –95.7 kJ
(reaction 3) C (s) + 1/2 H2 (g) + 3/2 Cl2 (g) → CHCl3 (g) ΔH = –102.7 kJ
find ΔH for the reaction:
CHCl3 (g) + Cl2 (g) → HCl (g) + CCl4 (g)
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