Reaction rates

Task 1 Part A. Explain what is meant by: rate of reaction. Write down the factors that affect the rate of a chemical reaction.   Carry out a series of experiments to investigate rates of chemical reactions, and present your results appropriately. You should investigate at least four factors (e.g. surface area, temperature, concentration, catalyst.) Part B Use your results from Part A to describe how the factors you investigated affect the rate of a chemical reaction. Write down word and symbol equations for the reactions you are investigating. If you complete this task correctly, you will meet grading criterion P5.

Task 2 Draw and label a diagram showing the each stage of the Haber process. Write out the equation and explain that it is reversible (dynamic equilibrium). Explain how different factors affect the rate of reaction in the production of ammonia Pressure Temperature Concentration Catalyst If you complete this task correctly, you will meet grading criterion M5.

Task 3 Explain why reactions in the chemical industry need to be carefully controlled. Find out about the conditions used in the Haber process for manufacturing ammonia: §  proportions and concentrations of the reactants §  operating temperature §  details of the catalyst. Describe how each of these factors affects the rate of this particular reaction. Explain why a compromise is reached between conditions that make the reaction go faster with conditions that give maximum yield If you complete this task correctly, you will meet grading criterion D3.