Assuming that each of the following graphs has the same concentration and time d
ID: 950398 • Letter: A
Question
Assuming that each of the following graphs has the same concentration and time does, which has the greatest initial rate of disappearance of reactant? Given the following data, determine the order of the reaction with respect to NO(g) The following graph shows the kinetics curves for the reaction of oxygen with hydrogen to form water:N_2(g) + 2O_2(g) rightarrow 2NO-2(g).which curve is O_2? the dashed curve the gray curve the black curve either the gray or the black curve Any of these curves could be O_2 For the rate law Rate -K[A]^2[B]. the partial Order to A is the partial order with respect to B is and the total order is 2,0,2 1, 2, 3 2, 1, 3 1, 0, 1, 1, 1/2, 1.5 The following figure shows catalyzed and uncatalyzed reaction paths. Which of the reaction paths shows the best effect of a catalyst? the blue line 'A' the black line 'B' the purple line'C' the red line'D' the green line 'E' The second-order reaction A + B rightarrow C will obey pseudo first-order kinetics when the concentrations of A and B are both small. the concentration of C is large. a catalyst changes the mechanism to a first-order reaction. the concentrations of A and B are both large. the concentration of one of the reactants is large and does not change. ChangeExplanation / Answer
7. From the graph, the greatest initial rate of disappearence of reactant is for,
D
8. let rate law be,
rate = k[NO]^x.[Cl2]^y
with x and y be order with respect to each reactant and k rate constant
From Expt. 1 and 2, [Cl2] is constant
rate 1/rate 2 = 34 x 10^-5/8.5 x 10^-5 = (0.03/0.015)^x
taking log of both sides
x = 2
The order with respect to [NO] is,
D. second
9. In the given graph, the O2 line is shown by,
C. the black curve
10. For the given rate law, the partial order with respect to A, B and overall order will be,
C. 2,1,3
11. In the given graph, the best of effect of catalyst is depicted by
A. the blue line 'A'
12. The second-order reaction will behave as pseudo-first order when,
E. the concentration of one of the reactants is large and does not change