Transition Work

Reaction Rates – Let’s Go Faster
The rate of reaction can be calculated using the formula:

rate of reaction= (amount of reactant used or amount of product formed)/time

→ The steeper the slope created the faster the reaction, a steep slope occurs when the amount of reactant used/amount of product formed is large and the time over which this occurs is small.

Factors that affect rate of reaction
There are 4 distinct factors that each affect the rate of reaction:

→ Temperature: increasing the temperature, increases the rate of reactions because: Particles collide more often Particles collide with more energy

→ Concentration: Increasing the concentration of reactants in solutions increases the frequency of collisions between particles and so increases the rate of reaction

→ Pressure: Increasing the pressure of reacting gases also increases the frequency of collisions and so increases the rate of reaction

→ Catalysts: Catalysts speed up the rate of a chemical reaction but do not change itself Different catalysts are needed for different reactions in order to be most efficient Catalysts are used whenever possible in industries to increase the rate of reaction and reduce energy costs Traditional catalysts are often transition metals or their compounds, which can be toxic and harm the environment Modern catalysts are being developed in industry which result in less waste and are safer for the environment

Collision Theory
This was a theory proposed