select the correct location on the diagram. which location represents the enthalpy of reaction?
select the correct location on the diagram. which location represents the enthalpy of reaction?
Answer
Explanation:
Step1: Recall enthalpy - reaction definition
Enthalpy of reaction ($\Delta H$) is the difference in chemical potential energy between products and reactants.
Step2: Identify reactants and products energy levels
In the diagram, the energy level of reactants is at the start and products at the end of the reaction progress. The vertical distance between the energy level of products and reactants represents $\Delta H$.
Answer:
The vertical arrow between the energy - level of products and reactants (the lower vertical arrow in the diagram) represents the enthalpy of reaction.