Question

4. Consider a hypothetical reaction involving two reactants, X + Y Z a) Write a "generic rate law for this reaction using variables for the orders of each reactant. b) We want to use the method of integrated rates to determine the order of the reaction with respect to reactant X. What should be true about the concentration of Y in our experiment in order to isolate the behavior of X? c) Write an expression for the pseudo rate constant that would be determined in part b assuming the concentration of Y was 2.0 M and that it was known that the reaction was second order in Y.

Answer 1

aus. " X+Y 2 a) generic Rate = rate raw x[x]a[Y]b az order with respect to reactant x b= order with respect to reactant Y b) To dete To determine order of reaction with - respect to reactant &, only y is left limited and Y is in large encens. so concentration of Y should be very large tham x to isolate behaviour of y Rate = K[x]"[r]b b=2; [Y)= 2.0M, Rate =k [x]" [20072 Rate = 4(x3a = k'cxja ki =(4 times initial rate constant) Pseudo rate constant = k'=.uk