Consider this reaction data: If you were going to graphically determine the acti

Question

Consider this reaction data: If you were going to graphically determine the activation energy of this reaction, what points would you plot? A products Number Number T (K) k (s-1) 325 0.378 625 0.721 point 1: To avoid rounding errors, use at least three significant figures in all values. Number Number point 2 Determine the rise, run, and slope of the line formed by these points rise run slope Number Number Number What is the activation energy of this reaction? Number J/mol Give Up & View Solution O Check Answer Next-I Exit Previous Hint

Explanation / Answer

For,

A ---> products

                           x (1/T)                             y (lnk)

point 1              0.003077                        - 0.97286

point 2              0.001600                        - 0.32712

rise = y2 - y1 = - 0.32712 - (- 0.97286) = 0.64574

run = x2 - x1 = 0.001600 - 0.003077 = -0.001477

slope = rise/run = 0.64574/(-0.001477) = - 437.20

Activation energy of reaction (Ea) = -slope x R

                                                      = -(-437.20 x 8.314)/1000 = 3635 kJ/mol

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