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TERMOKIMIA -ENERGY LEVEL

- Energy Level Diagram is a graph that shows the energy change of a chemical reaction
(graf yang menunjukkan perubahan tenaga dalam tindak balas kimia)

The energy change can be presented by using anenergy level diagram
.(perubahan tenaga boleh diwakili menggunakan rajah aras tenaga)

lEnergy change, ΔH = energy bond breaking + bond formation

lIn exothermic reaction,

- the heat released from the bond

formation is greater than the heat

absorbed for bond breaking.

- A negative sign for ΔH shows that heat

is released


lIn endothermic reaction,

- the heat absorbed from the bond

breaking is greater than the heat

released for bond forming.





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