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Rates of Reaction
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| Submitted: Thu Jul 11 2002
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Rates of Reaction. Sodium Thiosulphate + Hydrochloric Acid Sulphur + Sulphur dioxide + Sodium chloride + Water Results: Temperature (Celsius) Time (in Seconds) 1st exp. 2nd exp. Average Rate (S-1) 21 180 200 190 5.3x10-3 32 135 125 130 7.7x10-3 41 46 48 49 20x10-3 50 31 33 32 31.25x10-3 60 26 24 25 40x10-3 72 12 11 1.5 86.9x10-3 83 5 7 6 166.6x10-3 Conclusion: The higher the temperature, the faster the reaction takes place; the quicker the rate of reaction. As the temperature increase 10 0C the time taken for the sodium thiosulphate and hydrochloric acid to react will half. This can be seen looking at the red lines of interpretation one the first graph. Looking at the second graph we can see that for every 10 0C increase the reaction rate doubles. Had I made a prediction for this experiment I would have probably anticipated that when you double the temperature the reaction rate halves, as I can...
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