Advertisements
Advertisements
प्रश्न
Answer the following in brief.
What are the units of the rate constant?
उत्तर
The unit of the rate constant for the zero-order reaction is mol dm-3 s-1.
APPEARS IN
संबंधित प्रश्न
How will you represent first order reactions graphically.
Answer the following in brief.
Give one example and explain why it is pseudo-first-order.
Write a mathematical expression for integrated rate law for zero-order reaction.
Define half life of a reaction.
A zero-order reaction \[\ce{X -> Product}\], with an initial concentration 0.02 M has a half-life of 10 min. if one starts with concentration 0.04 M, then the half-life is
The rate constant of a reaction is 5.8 × 10−2 s−1. The order of the reaction is ____________.
Give two examples for zero order reaction.
Identify the order for the following reaction.
Radioactive disintegration of 92U238
The time for half change in a first order decomposition of a substance A is 60 seconds. Calculate the rate constant. How much of A will be left after 180 seconds?
A zero order reaction is 20% complete in 20 minutes. Calculate the value of the rate constant. In what time will the reaction be 80% complete?
A reaction that is of the first order with respect to reactant A has a rate constant 6 min−1. If we start with [A]0 = 0.5 mol dm−3, when would [A] reach the value 0.05 mol dm−3?
Which among the following reaction is an example of a zero order reaction?
What is the order of reaction if the unit of rate constant (k) is mol dm−3 s−1?
If time required to decrease concentration of reactant from 0.8 M to 0.2 M is 12 hours, the half life of this first order reaction is ____________.
Which of the following represents the expression for `(3/4)^"th"` life of 1st order reaction?
The order of the reaction for which the unit of rate constant is s−1 is ____________.
For first order reaction the slope of the graph of log10 [A]t Vs. time is equal to ____________.
A first order reaction is 75% completed in 60 minutes, the time required for it's 50% completion is ____________.
Reaction given below follows first order kinetics:
\[\ce{2N2O2 -> 4NO2 + O2}\]
Calculate the rate constant of reaction if concentration of N2O2 is 0.05 M and rate of reaction is 1.5 × 10−6 mol L−1 s−1?
A first order reaction takes 40 minutes for 30% completion. Calculate the half-life of reaction.
A first order reaction is 50% completed in 16 minutes. The percentage of reactant that will react in 32 minutes is ____________.
Which is the unit of rate constant for the first-order reaction if time is expressed in seconds?
Rate constant for zero order reaction is 2 × 10-2 mol L-1 s-1. If the concentration of the reactant after 25 sec. is 0.5 M, what is the initial concentration of reactant?
Obtain the expression for half-life and rate constant of the first-order reaction.
Define the half-life of a first-order reaction.
The rate constant and half-life of a first order reaction are related to each other as ______.
The rate constant for a first order reaction is 7.0 × 10-4 s-1. If initial concentration of reactant is 0.080 M, what is the half-life of reaction?
A radioactive isotope decayed to 17/32 of its original mass after 60 minutes. Find the half-life of this radioisotope.
What is the rate constant of a first order reaction if 0.08 mole of reactant reduces to 0.02 mole in 23.03 minutes?
The half-life of first order reaction is 1.7 hour. What is its rate constant?