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10. Suppose that the reaction A products is exothermic and has an activation barrier of 75kJ/mol. a. Sketch an energy curve showing the energy of the reaction as a function of the progress of the reaction. b. Draw a second energy curve showing the effect of a catalyst. For the past 10 years, the unsaturated hydrocarbon 1,3-butadiene (CH2=CHCH=CH2) has ranked 38th among the top 50 industrial chemicals. It is used primarily for the manufacture of synthetic rubber. An isomer exists as cyclobutene: The isomerization of cyclobutene to butadiene is first-order and the rate constant has been measured as 2.0104s1 at 150C. Determine the partial pressure of cyclobutene and its concentration after 30.0 minutes if an isomerization reaction is carried out at 150C in a 0.53L flask with an initial pressure of 55 torr