Advertisements
Advertisements
Question
Answer the following in brief.
What are the units of the rate constant?
Solution
The unit of the rate constant for the zero-order reaction is mol dm-3 s-1.
APPEARS IN
RELATED QUESTIONS
Answer the following in one or two sentences.
What are the units for rate constants for zero-order and second-order reactions if time is expressed in seconds and concentration of reactants in mol/L?
What are pseudo-first-order reactions?
The rate of catalysed reaction is large than the uncatalysed reaction as _______.
Explain pseudo first order reaction with a suitable example.
The rate constant of the first order reaction is 1.386 min–1. Calculate the time required for 80% reactant to decompose?
The decomposition of phosphine (PH3) on tungsten at low pressure is a first-order reaction. It is because the
Write the rate law for the following reaction.
A reaction that is second order in NO and first order in Br2.
From the following data, show that the decomposition of hydrogen peroxide is a reaction of the first order:
t (min) | 0 | 10 | 20 |
V (ml) | 46.1 | 29.8 | 19.3 |
Where t is the time in minutes and V is the volume of standard KMnO4 solution required for titrating the same volume of the reaction mixture.
A first order reaction is 40% complete in 50 minutes. Calculate the value of the rate constant. In what time will the reaction be 80% complete?
A first order reaction has a rate constant 0.00813 min-1. How long will it take for 60% completion?
The following reactions follow zero order kinetics, EXCEPT ____________.
A first order reaction is 25% completed in 40 minutes. What is the rate constant k tor the reaction?
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?
The integrated rate equation for first-order reaction, A → product, is ______.
Which of the following represents the expression for `(3/4)^"th"` life of 1st order reaction?
Half-life period of a first order reaction, \[\ce{A -> product}\] is 3.0 hours. What is the value of rate constant?
For a zero order reaction, the plot of [A]t vs t is linear. The slope of the line is equal to ____________.
The rate of formation of B at time t for reaction \[\ce{2A -> 3B}\] is equal to ____________.
A first order reaction takes 40 minutes for 30% decomposition. What is the half-life of reaction?
A first order reaction, A → B takes 100 minutes for it's 90% completion. What is the rate constant of reaction?
Which is the unit of rate constant for the first-order reaction if time is expressed in seconds?
Which one of the following reactions is a true first-order reaction?
Half-life of a first order reaction is 30 minutes and initial concentration of reactant is 0.1 M.
What is half-life of the reaction if initial concentration of reactant is doubled?
Consider the following reaction.
\[\ce{SO2(g) + 1/2 O2(g) <=>[K1] SO3(g)}\]
\[\ce{2SO3(g)<=>[K2] 2SO2(g) + O2(g)}\]
What is the relation between K1 and K2?
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?
Which of the following correctly represents integrated rate law equation for a first order reaction in a gas phase?