Answer:
(a) For a
reaction Product,
rate law is the expression for the rate in terms of molar concentration of the
reactants
where k
is called rate constant.
x is the
order of the reaction wrt A.
y is
the order of the reaction wrt B.
If thenThus rate
constant is the rate of the reaction at a time when molar concentration of each
reactant is [1]
Unit of k
is If order =
n (i)
Thus, (1-n) =
1
n = 0 order
= zero
(ii)
Thus,
1-n=-1
Thus,
n=2
Order =
2
(b)
If a =1
[1]
Alternate
(short) method We know (75
(time of 75%
reaction) For first
order reaction
[1]
Or
(a)
[1]
0.1
0.2
At time t
[1]
(b)
[1]
[1]
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