Understand the principle that during a chemical reaction, external energy must be continually supplied to successfully break the existing bonds contained in the reactants.
Understand that internal energy is subsequently released to the environment when new chemical bonds form within the products.
Calculate the required energy to break bonds and the total energy released when bonds are formed by utilizing standardized bond energy values.
Calculate the overall energy change of any given reaction by finding the mathematical difference between the sum of reactant bond breaking energy and the sum of product bond formation energy.
Explain that in an exothermic reaction, the overall energy released from newly forming bonds significantly exceeds the energy originally needed to break existing bonds.
Explain that in an endothermic reaction, the overall energy originally needed to break existing bonds significantly exceeds the energy released by newly forming bonds.
Calculate the precise amount of thermal energy transferred in specific chemical reactions using supplied tables of bond energies.
