2CLabManual201303

Enter the natural logarithm values in the

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Unformatted text preview: es, t1/2, you entered above. Enter the rate constants in the corresponding order with the of the half-lives. Report your rate constant values using at least 3 nonzero digits. (e.g. 0.00439). Calculate the natural logarithm of each of the rate constants, k, you entered above. Enter the natural logarithm values in the corresponding order with the of the rate constants. Report your natural logarithm values using at least three digits. (e.g. -7.89). Plot the values of ln(k) vs.1/T on a spreadsheet or a programmable calculator. Carefully, determine the slope of the best straight line fit through the data using a regression (least squares fitting) formula provided by your calculator or spreadsheet. The slope value should be accurately determined to enable you to calculate a reasonable value for the activation energy of the reaction. Remember that the best fit line of the points on this graph should not be forced to go through the origin, (0,0), since the y-intercept in not necessarily zero. Enter the value of the slope of ln(k) vs.1/T. The activation energy of the reaction may be calculated using the previously determined slope. Please enter the value you calc...
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This note was uploaded on 04/09/2013 for the course CHE CHE 2C taught by Professor Nasiri during the Spring '07 term at UC Davis.

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