ChemistryCode 5070
Rate of reaction
What this topic asks you to be able to do
- Describe the collision theory with reference to (a) how many particles are present in each unit of volume, (b) how often particles collide with one another, (c) the kinetic energy that particles carry, (d) the activation energy, Ea
- State that a catalyst raises the rate of a reaction, lowers the activation energy, Ea, of that reaction, and remains unchanged once the reaction has finished
- Describe, and account for, how the rate of reactions is influenced by: (a) altering the concentration of solutions (b) altering the pressure of gases (c) altering the surface area of solids (d) altering the temperature (e) introducing or withdrawing a catalyst, including enzymes, by means of collision theory
- Describe and evaluate practical ways of investigating a reaction's rate, including tracking how the mass of a product or reactant changes and tracking the gas that forms
- Interpret the data that experiments on reaction rates produce, including graphs