3bRates of reaction

Syllabus objectives

• 3.9describe experiments to investigate the effects of changes in surface area of a solid, concentration of a solution, temperature and the use of a catalyst on the rate of a reaction
• 3.10describe the effects of changes in surface area of a solid, concentration of a solution, pressure of a gas, temperature and the use of a catalyst on the rate of a reaction
• 3.11explain the effects of changes in surface area of a solid, concentration of a solution, pressure of a gas and temperature on the rate of a reaction in terms of particle collision theory
• 3.12know that a catalyst is a substance that increases the rate of a reaction, but is chemically unchanged at the end of the reaction
• 3.13know that a catalyst works by providing an alternative pathway with lower activation energy
• 3.14draw and explain reaction profile diagrams showing ΔH and activation energySeparate Chemistry only
• 3.15practical: investigate the effect of changing the surface area of marble chips and of changing the concentration of hydrochloric acid on the rate of reaction between marble chips and dilute hydrochloric acidPractical
• 3.16practical: investigate the effect of different solids on the catalytic decomposition of hydrogen peroxide solutionPractical