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J. W. Hill, R. H. Petrucci, T. W. McCreary, & S. S. Perry General Chemistry, 4th edition.

Problem 13.55.

Rate constants for the first-order decomposition of acetonedicarboxylic acid
CO(CH2COOH)2(aq)
CO(CH3)2(aq)
+
2CO2(g)
acetonedicarboxylic acid
acetone
are k = 4.75 ×10–4 s–1 at 293 K and k = 1.63 ×10–3 at 303 K. What is the activation energy, Ea, for this reaction?




Answer:

Use the two-point form of the Arrhenius equation to answer this question:


where k2 = 1.63 ×10–3 at T2 = 303 K and k1 = 4.75 ×10–4 at T1 = 293 K.