Let the order of reaction is nth, then the rate of the reaction will be given as follows.
rate = k[C2H5Cl]n
where , k = rate constant
Step (1) Calculation for order of reaction.
using the given first data.
0.805×10-30M/s = k(0.100M)n .........(1)
Using the second data .
1.61×10-30M/s = k(0.200M)n ........(2)
By dividing equation 2 by equation 1.
{(1.61×10-30M/s)/(0.805×10-30 M/s)} = {k(0.200M)}n/{k(0.100M)}n
2 = [0.200M/0.100M]n
2 = (2)n
or
21= (2)n
on comparing both sides.
n = 1
Hence ,
Order of reaction = n = 1
.
Step(2) Calculation for rate constant.
Putting the value of n in equation number (1)
0.805×10-30M/s = k(0.100M)1
0.805×10-30M/s = k(0.100M)
k = (0.805×10-30M/s)/(0.100M)
k = 8.05×10-30/s
k = 8.05×10-30s-1
Hence,
unit of rate constant = s-1
k = 8.05×10-30
estion 12 of 16 Consider this initial-rate data at a certain temperature for the reaction described...
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