English

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 ______.

Advertisements
Advertisements

Question

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 ______.

Options

  • 11.55

  • 115.5

  • 1155

  • 1.155

MCQ
Fill in the Blanks
Advertisements

Solution

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 1155.

shaalaa.com
  Is there an error in this question or solution?
Chapter 6: Chemical Kinetics - Multiple choice questions

RELATED QUESTIONS

Answer the following in one or two sentences.

Write the relationships between rate constant and half-life of the first order and zeroth-order reactions.


Answer the following in brief.

Obtain the relationship between the rate constant and half-life of a first-order reaction.


Answer the following in brief.

How will you represent the zeroth-order reaction graphically?


How will you represent first order reactions graphically.


Answer the following in brief.

Derive the integrated rate law for the first-order reaction,

\[\ce{A_{(g)} -> B_{(g)} + C_{(g)}}\] in terms of pressure.


Answer the following in brief.

What are the units of the rate constant?


Give one example of a pseudo first-order reaction.


Explain pseudo first order reaction with a suitable example.


Write units of rate constants for:

  1. First-order reaction
  2. Zero-order reaction

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


Assertion: rate of reaction doubles when the concentration of the reactant is doubles if it is a first-order reaction.

Reason: rate constant also doubles.


Give two examples for zero order reaction.


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.


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 ____________.


What is the order of reaction if the unit of rate constant (k) is mol dm−3 s−1?


Which of the following represents the expression for `(3/4)^"th"` life of 1st order reaction?


For first order reaction the slope of the graph of log10 [A]t Vs. time is equal to ____________.


For a zero order reaction, the plot of [A]t vs t is linear. The slope of the line is equal to ____________.


The time taken for 80% of a first order reaction to be complete is approximately ____________.


A first order reaction takes 40 minutes for 30% decomposition. What is the half-life of reaction?


A first order reaction takes 40 minutes for 30% completion. Calculate the half-life of reaction.


The time required to decompose SO2Cl2 to half of it's initial amount is 60 minutes. Calculate rate constant for this first order reaction.


The integrated rate equation is Rt = log C0 – log Ct, then the straight-line graph is obtained by plotting.


The integrated rate law is a direct relationship between time and ______


Define the half-life of a first-order reaction.


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.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×