Advertisements
Advertisements
Question
If the initial concentration of substance A is 1.5 M and after 120 seconds the concentration of substance A is 0.75 M, the rate constant for the reaction if it follows zero-order kinetics is ______.
Options
0.00625 molL-1s-1
0.00625 s-1
0.00578 molL-1s-1
0.00578 s-1
Advertisements
Solution
If the initial concentration of substance A is 1.5 M and after 120 seconds the concentration of substance A is 0.75 M, the rate constant for the reaction if it follows zero-order kinetics is 0.00625 molL-1s-1.
Explanation:
For Zero order reaction,
k = `(["R"]_0 - ["R"])/"t"`
k = `(1.5 - 0.75)/120`
k = 0.00625 molL-1s-1
APPEARS IN
RELATED QUESTIONS
The decomposition of NH3 on platinum surface is zero order reaction. What are the rates of production of N2 and H2 if k = 2.5 × 10−4 mol−1 L s−1?
Give one example of zero order reaction.
Derive integrated rate law for a zero-order reaction \[\ce{A -> Product}\].
Which of the following graphs is correct for a zero order reaction?
Write the rate equation for the reaction `2A + B -> C` if the order of the reaction is zero.
For a zero order reaction will the molecularity be equal to zero? Explain.
Consider the following statement:-
(i) Increase in concentration of reactant increases the rate of a zero-order reaction.
(ii) Rate constant k is equal to collision frequency A if Ea = 0
(iii) Rate constant k is equal to collision frequency A if Ea = 0
(iv) In k vs t is a straight line
(v) In k vs 1/T is a straight line
Which of the above statement is correct?
Derive integrated rate law for zero order reaction.
Write the unit of rate constant of zero order reaction.
If unit of rate constant is mol dm−3s−1, the order of reaction would be ______.
