Advertisements
Advertisements
प्रश्न
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?
Advertisements
उत्तर
Units of rate constant
i. Zero-order reaction is mol L-1 s-1
ii. The second-order reaction is mol-1 L s-1
APPEARS IN
संबंधित प्रश्न
Solve
A first-order reaction takes 40 minutes for 30% decomposition. Calculate its half-life.
Rate constant of a reaction is 3.6 × 10–3 s–1. The order of reaction is ______.
For first order reaction, the rate constant for the decomposition of N2O5 is 6 × 10–4 s –1. The half-life period for decomposition in seconds is ______.
Write order of the following reaction:
\[\ce{2NH_{3(g)} -> N_{2(g)} + 3H_{2(g)}}\]
Explain pseudo first order reaction with a suitable example.
Derive an integrated rate law expression for first order reaction: A → B + C
For a first-order reaction, the rate constant is 6.909 min−1 the time taken for 75% conversion in minutes is
In a first order reaction \[\ce{x -> y}\]; if k is the rate constant and the initial concentration of the reactant x is 0.1 M, then, the half life is
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?
What is the value of rate constant of first order reaction, if it takes 15 minutes for consumption of 20% of reactants?
How long would it take to electroplate a spoon with 0.1 mol of silver (108 g/mol) at a constant current of 2.0 A using AgNO3?
The rate of the reaction \[\ce{A + B -> C}\] is 3.6 × 10−2 mol dm−3 s−1 when [A] = 0.3 mol dm−3 and [B] = 0.2 mol dm−3. Calculate k if reaction is first order in A and zero order in B.
A first order reaction is 25% completed in 40 minutes. What is the rate constant k tor the reaction?
In a first order reaction, the concentration of the reactant is reduced to 25% in one hour. The half-life period of the reaction is ____________.
For the first order reaction, plot of log10 [A]t against time 't' is a straight line with a negative slope equal to ____________.
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 ____________.
For the first order reaction A → B, the rate constant is 0.25 s-1, if the concentration of A is reduced to half, the value of rate constant will be ________.
Half-life of first-order reaction \[\ce{X -> Y + Z}\] is 3 minutes. What is the time required to reduce the concentration of 'X' by 90 % of it's initial concentration?
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?
The expression to calculate time required for completion of zero order reaction is ______.
Obtain the expression for half-life and rate constant of the first-order reaction.
Which one of the following reactions is a true 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?
What are integrated rate laws?
The half-life period for the first order reaction is 1.7 hrs. How long will it take for 20% of the reactant to disappear?
