How Does Temperature Affect The Rate Of Reaction Lab Report

Analysis: The end amount of oxygen released in the control for Class Data, was 49 mL. The end amount of oxygen released for the hot trial was 78 mL, 29 mL more than the control. The end amount of oxygen released for the cold trial was 38 mL, 11 mL less than the control.

Conclusion: The hot trial produced the most oxygen of all three trials. Heat tends to increase the rate of chemical reactions, explained in the article Temperature Effects (Introduction to Enzymes) by Chris Jamison. “Like most chemical reactions, the rate of an enzyme-catalyzed reaction increases as the temperature is raised. A ten degree rise in temperature will increase the activity of most enzymes by 50 to 100% . Variations in reaction temperature as small as 1 or 2 degrees
One source of error would be that when recording the amount of oxygen released every thirty seconds, it may not have been exactly thirty seconds between each time the oxygen was recorded. Another error would be the amount of catalase in each experiment could’ve been inconsistent because it was hard to get all of the circles of paper to be coated exactly the same. Some paper circles had catalase dripping off it, while others were just barely coated. Measuring the amount of oxygen release at the wrong times affected the data by making the increased in amount of oxygen released either seem very dramatic, or insignificant. The second error could have affected the data because more catalase means a bigger reaction, making the procedure between all three trials inconsistent. The group data reflects what the class data shows, the hot trial produced the most oxygen, followed by the control, and finally the cold trial, however the lines depicting the class data have a greater incline, showing that the release of oxygen was quicker and bigger. These results are similar to those in a lab performed by a college student Priyanka Tiwari, who showed the relationship between enzyme temperature, and concentration. She also performed three trials using room temperature, hot, and cold catalase and showed that most reactions happen at temperatures around 37 degrees Celsius. She came to the conclusion that, “Enzyme activity is the greatest at the optimal temperature of 37 degrees Celsius as this relates to human body temperature and the enzyme catalase is also present in the human body” (Tiwari). An increased temperature is most likely to increase enzyme reactions, which is shown in both Tiwari’s, and this