the rate of reaction r= K[A] m [B] n , where m and n are orders of reaction with
ID: 699593 • Letter: T
Question
the rate of reaction r= K[A]m [B]n, where m and n are orders of reaction with respect to A and B respectively and K is rate constant.
from 1st data point, given [A]=[B]=1.5, rate= K[1.5]m[ 1.5]n= 0.315 (1)
from 2nd data point, K[1.5]m [2.5]n= 0.298 (2)
Eq,2/Eq.1 (2.5/1.5)n= 0.298/0.315
taking ln, n*ln(2.5/1.5)= ln(0.298/0.315)
n= -0.11
from 3rd data point, K[3]m [1.5]n= 0.55 (3)
Eq.3/Eq.1 gives 2m=1.74, taking ln, mln2= ln(1.74), m=0.8
the rate hence r= K[A]0.8 [B]-0.11
from the 1st data point, K[1.5]0.8 [1.5]-0.11= 0.315, K=0.24/M0.31.S
rate law becomes r= 0.24[A]0.8 [B]-0.11
Explanation / Answer
7) Consider the reaction: A + B--> products. From the following data obtained at a certain reaction and calculate the rate constant: temperature, determine the order of the A M BI M Rate (M/s)Related Questions
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