Energy Changes In Chemistry Flashcards
In a reaction profile diagram, how is an exothermic reaction represented
When the reactants are higher than the products
Or
negative energy change
In a reaction profile diagram, how is an endothermic reaction represented
When the products are higher than the reactants
Or
positive energy change
How do you demonstrate activation energy on reaction profiles?
An arrow starting at reactants and going to the highest
How do you demonstrate overall energy change on reaction profiles?
An arrow starting at reactants going to products
What type of reaction is responsible for bond breaking?
Endothermic
What type of reaction is responsible for bond making?
Exothermic
What is bond energy?
The average amount of energy that will break/make a bond between two atoms
How do you calculate energy change?
Energy in bond breaking - energy in bond making
Bond making ____ energy
Releases
Bond breaking ____ energy
Absorbs
