two-equilibrium-states-of-the-dissociation-reaction-pq-p-q-at-two-different-temp

Question

Two equilibrium states of the dissociation reaction PQ ⇌ P + Q at two different temperatures are shown in the diagrams below.

Two diagrams showing equilibrium states of the reaction PQ ⇌ P + Q at different temperatures.

Identify whether the reaction is exothermic or endothermic and justify your answer using Le Chatelier's principle.

Accepted Answer

The reaction proceeds forward as the temperature increases, "heat" is considered as a reactant therefore the reaction is endothermic.

Answer

The reaction proceeds forward as the temperature increases, "heat" is considered as a reactant therefore the reaction is exothermic.

Two equilibrium states of the dissociation reaction PQ ⇌ P + Q at two different temperatures are shown in the diagrams below. Identify whether the reaction is exothermic or endothermic and justify your answer using Le Chatelier's principle.