rates (equilibria) Flashcards
1
Q
what factors affect the rate of a reaction?
A
temperature
concentration of solutions
pressure
surface area of solids
catalysts
2
Q
what is activation energy?
A
the minimum amount of energy needed for a reaction to take place
3
Q
how does temperature affect the rate of reaction?
A
more particles have energy over the activation energy because temperature increases kinetic energy
4
Q
how do you work out the mean rate of reaction?
A
either
quantity of reactant used / time taken
quantity of product formed / time taken
5
Q
how does a catalyst affect the rate of reaction?
A
presence of a catalyst increases the rate of reaction by lowering the activation energy by providing an alternative pathway
