Energy level diagrams and use of catalysts Flashcards
1
Q
What is an exothermic reaction?
A
Releases energy into surroundings (heat energy). - temperate increases
2
Q
What is an endothermic reaction?
A
Absorbs energy from the surroundings. - temperature decreases.
3
Q
What process is bond breaking and why?
A
Endothermic as energy has to be put in to break bonds.
4
Q
What process is making bonds and why?
A
Exothermic as it is releasing energy. If the exothermic energy is greater than the endothermic reaction this is an EXOTHERMIC REACTION.
5
Q
What is the formula for energy change?
A
Bonds broken - bonds made/ reactants - products
6
Q
What is activation energy?
A
The minimum energy required to start a reaction.
