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Effect of temperature on the rate of reaction

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Introduction

Effect of temperature on the rate of reaction Aim: To investigate the effect of temperature on the speed of reaction between: Sodium thiosulphate 25ml Hydrochloric acid 5ml Sodium thiosulphate + Hydrochloric acid --> Sodium chloride + Sulphur dioxide + Sulphur + Water Apparatus: * Beaker * Stopwatch * Thermometer * 25ml of Sodium thiosulphate * 5ml of Hydrochloric acid * Water bath Safety: Wear goggles at all times just in case a chemical splashes into your eye. Method: Measure the Sodium thiosulphate and pour it into the beaker. Place the beaker into the water bath and wait until it reaches the temperature you are starting the experiment with. ...read more.

Middle

Write down your results in a results table. I will make this experiment a fair test by using the same measurement of chemicals in all the experiments. If I don't do this, my results will not be accurate and they may or may not make a pattern in my readings. I expect the reaction to happen faster as the temperatures increase; as I know that the more heat given off creates more energy which makes the particles collide more frequently. Therefore making the reaction faster. Results: The above are results from my experiment. ...read more.

Conclusion

The others just don't have enough energy and they bounce apart from each other. So to speed up the reaction you need to create more energy in the particles. For that we increase the temperature, which as we know creates more energy. Evaluation: I made my experiment as accurate as I could by trying my best to measure the acids precisely and doing things as carefully as I could. I think my plan has worked well but a few improvements could be made. One of those is working a little faster so that I have enough time to complete experiments within the whole 50-minute lesson. I tried my best to make my evidence good enough for my conclusion and I think I have reached that target. Annem Rehman 10D 1 ...read more.

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