energy changes

Cards (10)

what happens in an endothermic reaction?
energy is taken in from surroundings
what is an example of an endothermic reaction?
thermal decomposition
where is endothermic reactions used in reality?
In ice packs
what does an endothermic reaction look like on a graph?
the heat energy increases because energy is taken in
what is an exothermic reaction?
Energy is releases into the surroundings
what is an example of exothermic reaction?
-combustion
-neutralistaion
-oxidation
where is exothermic reactions used in reality?
-self heating
-warmers
what does an exothermic reaction look like on a graph?
The heat energy has decreased as energy has been released to the surroundings
what is activation energy?
the minimum amount of energy that the particles must have for a reaction to take place
what does a catalyst do?
lowers the activation energy