Rate Determination and Activation Energy 1. Plot a graph of your data above, using Temperature (°C) as the x-axis, and the rate constant, k, as the y-axis. 2. Determine the activation energy, Ea, by plotting the natural log of k vs. the reciprocal of absolute temperature. You can calculate 1/T (first convert T to K) and ln k manually, or use Excel to do it. You will also need to make a graph. 3. Calculate the activation energy, Ea, for the reaction. To do this, first, calculate the best fit line equation for the data in Step 2. Use the slope, m, of the linear fit to calculate the activation
Rate Determination and Activation Energy
1. Plot a graph of your data above, using Temperature (°C) as the x-axis, and the rate constant, k, as the y-axis.
2. Determine the activation energy, Ea, by plotting the natural log of k vs. the reciprocal of absolute temperature. You can calculate 1/T (first convert T to K) and ln k manually, or use Excel to do it. You will also need to make a graph.
3. Calculate the activation energy, Ea, for the reaction. To do this, first, calculate the best fit line equation for the data in Step 2. Use the slope, m, of the linear fit to calculate the activation
4. A well-known approximation in chemistry states that the
5. Using the rate constant and precise temperature value for the trial that was done at room temperature (~20°C), as well as the Ea value you obtained in Step 3 above, calculate the value of the rate constant at 40°C.
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