Reaction: A -->B follows a reaction of order 1. The following is the change in time [A] data. [A] M 1,6 t(s) 0,4 0,1 10 20 The rate constant and the half-life of the reaction are

The reaction rate for the elementary reaction: 2A + B 4C was measured at various temperatures, when the concentration of A was 2 mol/dm³ and that of B was 1.5 mol/dm³: –ra (mol/dm³ · s): T(K): Evaluate 0.002 300 0.046 320 0.72 340 a) Activation energy (EA) b) Pre-exponential (frequency) factor (A) c) The rate constant (k) as a function of temperature using To = 27 °C d) The rate constant at T = 100 °C For a) and b), please use the Arrhenius Plot. 8.33 360

Consider the following reaction: A + B --> C. Determine the (a) rate law of the reaction and (b) rate for the experiment using the given data Exp # [A]o [B]o d[C]/dt  (M/min) 1 0.010 0.010 0.075 2 0.020 0.020 0.300 3 0.020 0.040 0.600 4 0.050 0.020 ?

6) The decomposition of reactant R was studied, and the data given below was obtained at 100.0 °C: R> products time (min) concentration (M) 0.120 35.6 5.83 17.8 25.6 0.0910 0.060 0.046 0.030 a) What is the half-life of the reaction in minutes? Explain. b) Various plots of the concentration of the reactant versus time are given below. What is the order of the reaction? Explain. ILD is 20 time (min) time (min) 05 -35 time (min) c) What is the value of the rate constant at 100.0 °C? d) Would you expect the half-life of the reaction to be longer, shorter, or the same at 60.0 °C? Explain. e) The activation energy in the forward direction is 95.0 kl/mol, and the enthalpy change for the forward reaction is 30.0 kl/mol. Sketch the reaction coordinate diagram for this reaction. ERER AR