U1S5 kinetics Flashcards
1
Q
Collision theory
A
- a reaction won’t take place unless they collide in the right direction and with activation energy
2
Q
Activation energy
A
- the minimum amount of energy particles need to react
3
Q
MBD and temperature
A
- greater proportion of molecules have at least activation energy
- area under curve remains the same
4
Q
MBD and concentration
A
- collisions more frequent
- more particles so more area
5
Q
Catalyst
A
- increases rate of reaction by providing an alternative reaction pathway with a lower activation energy
- chemically unchanged at end of reaction
6
Q
Rate calculation
A
Amount of product formed or reactant used / time
7
Q
Methods of measuring reaction rate
A
- time taken for precipitate to form
- change in mass
- gas volume
