When the reaction in Exercise 21C.1(a) occurs in a dioxane/ water mixture which is 30 per cent

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When the reaction in Exercise 21C.1(a) occurs in a dioxane/ water mixture which is 30 per cent dioxane by mass, the rate constant fits kr=(7.78×1014)e−(9134K)/T dmmol−1 s−1 near 30 °C. Calculate ΔG for the reaction at 30 °C.


Data in Exercise 21C.1(a)

The reaction of propylxanthate ion in acetic acid buffer solutions has the mechanism A + H+→P. Near 30 °C the rate constant is given by the empirical expression kr=(2.05×1013) e−(8681K)/T dm3 mol−1 s−1. Evaluate the energy and entropy of activation at 30 °C.  

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