Using the form of energy diagram,make a concept map of the two different methods of calculation of reaction enthalpy(via the bond enthalpy and via the enthalpy of formation)
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To create a concept map representing the two different methods of calculating reaction enthalpy (via bond enthalpy and via enthalpy of formation) using an energy diagram, you can follow these steps:
1. Start by drawing a general energy diagram with reactants on the left and products on the right. Label the y-axis as "Potential Energy" and the x-axis as "Reaction Progress."
2. In the energy diagram, represent the initial energy (Einitial) of the reactants and the final energy (Efinal) of the products.
3. Draw a straight line connecting Einitial to Efinal, representing the overall energy change (∆E) of the reaction.
4. Now, divide the energy diagram into two separate sections, one for bond enthalpy and the other for enthalpy of formation calculations.
5. In the section for bond enthalpy, draw arrows pointing to and from individual bonds in the reactants and products. Label these arrows with the bond enthalpies (Hbond) for each bond.
6. Connect the individual bonds to highlight the breaking of bonds in the reactants and the formation of new bonds in the products. Label these connections with the respective bond enthalpy values.
7. On the side of the energy diagram related to enthalpy of formation, draw arrows pointing to and from the chemical species (atoms, ions, and molecules) in the reactants and products. Label these arrows with the enthalpy of formation (Hformation) for each species.
8. Connect the individual species to indicate their formation or consumption during the reaction. Label these connections with the respective enthalpy of formation values.
9. Finally, provide a key or a visual legend to differentiate between the bond enthalpy and enthalpy of formation calculations.
By following these steps, you can create a concept map that visually represents the two different methods of calculation of reaction enthalpy using an energy diagram.