5.
In an elementary reaction A + 2B + 2C + D. If
the concentration of A is increased four times and B
is decreased to half of its initial concentration then
the rate becomes
(1) Twice
(2) Half
(3) Unchanged
(4) One fourth of the rate
Answers
Answered by
35
Answer: (3) Unchanged
Explanation:
Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.
For elementary reactions, the stoichiometry gives the order of the reaction.
k= rate constant
x = order with respect to A
y = order with respect to A
n = x+y = Total order
Rate law= (1)
a) When concentration of A is increased four times and B is decreased to half of its initial concentration
(2)
Dividing 2 by 1 :
Thus the rate remains unchanged.
Answered by
15
Answer:unchanged
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