C2.4 Flashcards
What are the factors that effect the rate of reaction
Temperature Gas pressure Surface area of solids Concentration of solutions Presence of catalyst
How can the rate of reaction be measured
Measuring the amount
Or the amount product formed
Equations to find rate of reaction
Amount of reactant used/ time
Amount of product formed/ time
When can chemical reactions only occur
When reacting particles collide with each other and with sufficient energy
What is activation energy
Minimum amount of energy particles must have to react
What happens to the rate of reaction when you increase the temperature
It increases
Because increased speed of reacting particles
Collide more frequently
What happens to the rate of reaction when you increase the pressure of reacting gases
It increases
Because increases frequency of collisions
What happens to the rate of reaction when you increase the concentration of reactants
It increases
Because it increases the frequency of collisions
What happens to the rate of reaction when you increase the surface area of solid reactants
It increases
Because it increases the frequency of collisions
Why are catalysts important in industry
Increase the rates of reaction and reduces cost
At what rate do reactions happen
Any rate depending on the reaction
What reaction is the slowest
Rusting of iron
What reaction has a moderate rate
Metal reacting with acid
What reaction is very fast
Explosion
Benefits of catalysts
Lower temperatures
Reusable
