Question

Problem 4 (25%) A homogeneous chemical reaction A relationship B is known to follow the kinetic - =kC, where A is the rate of reaction, k is the rate constant, CA is the concentration of Species A, and n is the exponential factor. Testing provides kinetic data shown in Table 4. Table 4. Kinetic data for a homogeneous reaction. CA (molL) - (mol/Ls) 4 0.398 2.25 1.45 0.2980.238 1.0 0.65 0.1980.158 0.25 0.098 0.006 0.048 (,5%) What type of function is described by Equation 2? (b, 20%) Use a linearization transform of the non-linear expression given in Equation 2 to determine the values of n and k. Be sure to show your work for Part b, ie, do not use Excel or an iterative method to solve.

Answer 1

6) Given -IA=K CAM when CA = 4, -91 A = 0.398 CA=2.25, IA 0.298 It means 0.398 = kan 0.298 = K (2.25)n 0.398 - 14 in 1.3355 = (1.777) (1.797)/2 = 1.33041 so by approximately on=21 0.398 = K (4) K = 0. 398 2 k=0.199 so (n=42] (K = 0.1991 The equation is wha=0.199 Cala It is like mostly a parabolic function a)