Different chemical bonds hold different amounts of energy
If the reactant molecules in a reaction have more energy in their chemical bonds than the product molecules, will energy be absorbed or released overall:
released
exothermic reaction:
a reaction that releases thermal energy into the surroundings
If an exothermic reaction occurs in a closed container, what would happen to the temperature inside the container:
the temperature would increase
endothermic reaction:
A reaction that takes in thermal energy from the surroundings
If an endothermic reaction occurs in a closed container, what would happen to the temperature inside the container:
the temperature would decrease
this shows an endothermic reaction
this shows an exothermic reaction
activation energy:
the minimum amount of energy the reactant particles require in order to collide with each other and react
B shows activation energy
The activation energy is the difference in energy between the reactants and the top of the curve
A shows energy change
The energy change of the reaction is the difference in energy between the reactants and the products.
