5.5.1.2 Reaction Profiles Flashcards
1
Q
When can chemical reactions only occur?
A
- when reacting particles collide with each other
- with sufficient energy
2
Q
What is the activation energy?
A
- minimum amount of energy that particles must have to react
3
Q
What do reaction profiles show?
A
- relative energies of reactants and products
- activation energy
- overall energy change of a reaction
4
Q
How can you tell from a reaction profile if it is an exothermic reaction?
A
- products have less energy than reactants (due to heat being released to surroundings)
5
Q
How can you tell from a reaction profile if it is an endothermic reaction?
A
- products have more energy than reactants (due to heat being taken in from surroundings)
