Energy Changes And SOR Flashcards
1
Q
What is enthalpy change?
A
Energy absorbed to break bonds in reactants - energy released to form bonds in products
2
Q
Exothermic reactions have a -ve/+ve 🔺️H?
A
Negative
3
Q
How do we explain an exothermic reaction?
A
Energy absorbed to break bonds in reactants is less then energy released to form bonds in products
4
Q
What are the 5 factors affecting SOR
A
- Concentration of solution
- Surface Area of Solids
- Pressure
- Temperature
- Catalyst
5
Q
What is the common expl for temperature and catalyst?
A
More reacting particles have energy equal to or greater than the activation energy.
6
Q
What are the 7 golden keywords of SOR?
A
Frequency of effective collisions between reacting particles
