Rates Of Reaction Flashcards
1
Q
Effects on rate of reaction
A
Temp Pressure Size of particle Catalyst Gas
2
Q
How can rate of reaction be measured ?
A
The loss of a reactant or gain of a product measured over time
3
Q
How to measure change in mass
A
Weight
4
Q
Use collision theory
A
Particles must come into contact and not every collision caused a reaction .
Collide to produce change and needs sufficient energy called Ea
5
Q
What is a catalyst
A
A substance which alters the rate of reaction without being used up by the reaction
6
Q
What do positive catalysts do
A
Increase rate of reaction by providing an alt route and lowers Ea
7
Q
What are catalysts at the end of a reaction ?
A
Not chemically changed
Not used up
