IGCSE Chemistry Edexcel 4CH1

describe 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

explain 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

know that a catalyst is a substance that increases the rate of a reaction, but is chemically unchanged at the end of the reaction

know that a catalyst works by providing an alternative pathway with lower activation energy

draw and explain reaction profile diagrams showing ΔH and activation energy

practical: 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 acid

practical: investigate the effect of different solids on the catalytic decomposition of hydrogen peroxide solution

describe 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