4.6.1 Rate of reaction

Calculate the rate of a chemical reaction over time, using either the quantity of reactant used or the quantity of product formed, measured in g/s, cm3/s or mol/s

Draw and interpret graphs showing the quantity of product formed or reactant used up against time and use the tangent to the graph as a measure of the rate of reaction

Calculate the gradient of a tangent to the curve on the graph of the quantity of product formed or reactant used against time and use this as a measure of the rate of reaction

Describe how different factors affect the rate of a chemical reaction, including the concentration, pressure, surface area, temperature and presence of catalysts

Required practical 5: investigate how changes in concentration affect the rates of reactions by a method involving measuring the volume of a gas produced, change in colour or turbidity

Use collision theory to explain changes in the rate of reaction, including discussing activation energy

Describe the role of a catalyst in a chemical reaction and state that enzymes are catalysts in biological systems

Draw and interpret reaction profiles for catalysed reactions