# Temperature vs. Rate of Reaction Internal Assessment

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Rate of reaction IA Temperature vs. Rate of Reaction Experiment to investigate the effect that temperature has on the rate of reaction. Objective: In this experiment Iodine and Starch solution will be mixed together at various temperatures in order to determine the effect that temperature will have on the rate that the reaction will occur at. Materials: * Starch Solution x 1 * Iodine Solution x 1 * Thermometer x 1 * Ice placed in beaker x1 * Beakers (250cm3) x 3 * Large beaker x 1 * Stopwatch x 1 * Bunsen Burner x 1 * Test-tubes x 6 * Empty Beaker x 1 * Matches x 1 * Notebook x 1 * Pencil x 1 Safety and environmental care: * Avoid direct contact with any hot objects, ensure that clothing does not come into contact with flame. * Safety glasses are to be worn at all times whilst the experiment is in motion. * Gloves are to be worn whilst the experiment is in motion. * If an allergic reaction to iodine occurs, notify teacher immediately. Method: Room Temperature (23°C) : 1. Measure and pour 10cm3 of Iodine solution and 10cm3 of Starch solution into separate test tubes. 2. Have the stopwatch ready and pour both solutions into a 250cm3 beaker. 3. Record the time taken for reaction to be completed. 4. Write down the data in the notebook for further use. Cold water (0°C) : 1. Add water to the beaker filled with ice and wait for 5 minutes. 2. Measure and pour 10cm3 of Iodine solution and 10cm3 of starch solution into separate test tubes. 3. Place both test tubes into the beaker containing the ice water. 4. Place the thermometer inside of the beaker along with the test tubes. 5. Leave everything for 5 minutes and recorde the temperature. 6. Have the stopwatch ready and pour the contents of both solutions into a 250cm3