Question

As this reaction takes place at higher temperatures, it is observed that the equilibrium shifts to the product side. The reaction may be written as follows:

2AB2 A2 + 4B + heat
2AB2 + heat A2 + 4B
A2 + 4B 2AB + heat
2A + B4 4A2B + heat

Answer 1

The reaction is likely to be:
2AB₂ + heat → A₂ + 4B
This is because Le Chatelier's principle states that a reaction in equilibrium will shift to the side that reverses the change that is introduced into the system. Therefore, heat addition is favoring the products, then the reaction is endothermic.