Chemical Kinetics and Nuclear ChemistryHard
Question
In a certain reaction, 10% of the reactant decomposes in one hour, 20% in two hours, 30% in three hours, and so on. The dimension of the velocity constant (rate constant) are
Options
A.Hr-1
B.Mol L-1 hr-1
C.L mol-1 s-1
D.Mol s-1
Solution
From the question, it is clear t1/2 ∝ a. Hence, zero order reaction. So, dimension of k = mol L-1 hr-1.
For zero order: t =
or k = 
If t = t10% = 10 min, x = 10.
Then, k =
= 1 mol L-1 r-1
If t = t20% = 20 min, x = 20.
Then, k =
= 1 mol L-1 r-1
Similarly, for 30% and so on.
Thus, reaction is of zero order.
For zero order: t =
or k = If t = t10% = 10 min, x = 10.
Then, k =
= 1 mol L-1 r-1If t = t20% = 20 min, x = 20.
Then, k =
= 1 mol L-1 r-1Similarly, for 30% and so on.
Thus, reaction is of zero order.
Create a free account to view solution
View Solution FreeTopic: Chemical Kinetics and Nuclear Chemistry·Practice all Chemical Kinetics and Nuclear Chemistry questions
More Chemical Kinetics and Nuclear Chemistry Questions
A reaction takes place in three steps having rate constants K1, K2, K3 respectively. The overall rate constant K = . If ...6C12 and 1T3 are formed in nature due to the nuclear reaction of neutron with...How many coulomb of electricity would be required to reduce the iron in 32.9 g of potassium hexa cyano ferrate (III) K3F...Which of the following is a lyophobiccolloidal solution?...The decomposition of hydrogen peroxide in aqueous solution is a first-order reactionTime in minutes 0 10Volume (V, in ml...