Rate of reaction Flashcards
What is the rate of reaction?
How quickly the reactants turn into the products.
How do you work out the rate of reaction by the speed the reactant is used up?
Mean rate of reaction = quantitiy of reactant used / Time taken
How do you work out the rate of reaction by how much product is formed?
Quantity of product formed / time taken
What does a steep gradient mean?
Means a high rate of reaction
What does a shallow gradient mean?
A slow rate of reaction
What is collision theory?
When particles collide in a reaction, they need to have enough energy otherwise they will bounce apart.
How can you increase the rate of reaction?
- Increasing the frequency of the collisions
- Increasing the energy of the particles when they collide
What are the factors that effect the rate of reaction?
- Increasing the temperature
- Increasing the concentration of the solutions
- Increasing the pressure of gases
- Increasing the surface area of solids
What do catalysts do to a reaction?
A catalyst provides a different pathway that has a lower activation energy.
What is the rate of reaction using the change in mass?
Rate = Change in mass / Time taken
