22% 09/09/18 This is a Numeric Entry question/It is worth 1 point/You have unlim

Question

22% 09/09/18 This is a Numeric Entry question/It is worth 1 point/You have unlimited attempts/There is no attempt penalty 07 Question (1 point) Nitric axide reacts rapidly with unstable nitrogen triaxide (NO3) to form NO2 No(g) No, e)2N0,) Calculate the numeric value of the rate constant for the above reaction from the data in the table below Initial Reaction Rates for the Formation of NO2 by the Reaction of NO with NOs at 298 K. Experiment (NOb(M NOb M) Initial Reaction Rate (M/s) 2 3.60M103 1.80x103 3 | 3.60×10-J|3.60x1 1.80x10 1.80x103 36010 7.20x10 144000 1st attempt li See Periodic Table Q S The rate constant.k, is

Explanation / Answer

Rate =K[NO]m[NO3]n

From 1,2 experiments ,rate increase 2 times and [NO] increased two timed.

Hence 21=2m

m= 1 , First order with respect to NO

And from experiment 2,3 ,rate increases two times and [NO3] increase two times

Hence 21=2n

n=1, first order with respect to NO3.

Rate = K[NO][NO3]

K= Rate/[NO][NO3]

K= 3.60x10*4/1.8x1.8x10*-6

K= 3.60x10*10/3.24

K=1.11x10*10 M-1/s

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