8. Thermochemistry
Hess's Law
8. Thermochemistry Hess's Law
3PRACTICE PROBLEM
Consider the formation of X and X forming which occurs in two steps as shown below:
(i) W + 2X → 2Y ΔH° = +100 kJ
(ii) X + 2Y → 2Z ΔH° = –60 kJ
(iii) W + 3X → 2Z ΔH° = ?
Select the Hess's law diagram that best depicts the individual reactions and the overall process.
Consider the formation of X and X forming which occurs in two steps as shown below:
(i) W + 2X → 2Y ΔH° = +100 kJ
(ii) X + 2Y → 2Z ΔH° = –60 kJ
(iii) W + 3X → 2Z ΔH° = ?
Select the Hess's law diagram that best depicts the individual reactions and the overall process.