Energy diagrams typically display the energy on the vertical axis and the reaction progress or the coordinates that describe the system's state on the horizontal axis. The energy axis represents the potential energy of the system, which includes both kinetic energy and potential energy associated with the arrangement of atoms, molecules, or particles.

The shape and features of an energy diagram provide insights into the nature of the reaction or process being studied. Key components of an energy diagram include:

• Reactants: The reactants are shown on the left-hand side of the diagram and represent the starting materials or species before the reaction or process occurs. The energy of the reactants is depicted on the energy axis.

• Products: The products are shown on the right-hand side of the diagram and represent the final result of the reaction or process. The energy of the products is also represented on the energy axis.

• Activation Energy: The activation energy is the minimum amount of energy required for the reaction to occur. It is depicted as a barrier or hill on the energy diagram between the reactants and products. The height of the activation energy barrier indicates the difficulty or ease of the reaction.

• Transition State: The transition state, also known as the activated complex, is the highest energy point on the energy diagram. It represents the arrangement of atoms or particles during the transition from reactants to products.