Ahem. Endothermic and Exothermic. They both have the root-word thermic. And presumably all of you have used a Thermos at some point of your life. Or anything kind that's similar. That will get you started with the definition. Anyhow, endothermic reaction has the tendency to absorb energy in the surrounding where exothermic reaction release energy. (And I'm sure you can tell which one has a more preferable behaviour. LOL)
So molecules are generally assembled together by chemical bonds.
If energy used to breaks bonds > energy gives off to forms bonds -> endothermic reaction
If energy used to breaks bonds < energy gives off to forms bonds -> exothermic reaction
Endothermic and exothermic reactions can be made into a charted diagram where Potential Energy is the dependent variable and Reaction Progress is the independent variable. And an actual diagram like such can explain it all:
Exothermic reaction:
Endothermic reaction:
No comments:
Post a Comment