English

Write units of rate constants for: First-order reaction Zero order reaction - Chemistry

Advertisements
Advertisements

Question

Write units of rate constants for:

  1. First-order reaction
  2. Zero-order reaction
Short/Brief Note
Advertisements

Solution

Units of rate constants:

  1. First-order reaction: s–1, min–1 or hour–1
  2. Zero-order reaction: mol dm−3 s–1 
shaalaa.com
  Is there an error in this question or solution?
Chapter 6: Chemical Kinetics - Short answer questions (Type- II)

APPEARS IN

SCERT Maharashtra Chemistry [English] 12 Standard HSC
Chapter 6 Chemical Kinetics
Short answer questions (Type- II) | Q 4.2

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.

How will you represent the zeroth-order reaction 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.


Solve

A first-order reaction takes 40 minutes for 30% decomposition. Calculate its half-life.


Derive the integrated rate law for the zeroth order reaction. 


Give one example of a pseudo first-order reaction.


For the reaction 2NOBr → 2NO2 + Br2, the rate law is rate = k[NOBr]2. If the rate of a reaction is 6.5 × 10–6 mol L–1 s–1, when the concentration of NOBr is 2 × 10–3 mol L–1. What would be the rate constant of the reaction?


Explain pseudo first order reaction with a suitable example.


For a first order reaction \[\ce{A ->Product}\] with initial concentration x mol L−1, has a half life period of 2.5 hours. For the same reaction with initial concentration `("x"/2)` mol L−1 the half life is


This reaction follows first-order kinetics. The rate constant at particular temperature is 2.303 × 10−2 hour−1. The initial concentration of cyclopropane is 0.25 M. What will be the concentration of cyclopropane after 1806 minutes? (log 2 = 0.3010)


Describe the graphical representation of first order reaction.


Write the rate law for the following reaction.

A reaction that is `3/2` order in x and zero order in y.


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?


The integrated rate law is a direct relationship between ____________ and ____________.


A first order reaction has a rate constant 0.00813 min-1. How long will it take for 60% completion?


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?


A first order reaction completes its 10% in 20 minutes, then the time required to complete its 19% is ____________.


The integrated rate equation for first-order reaction, A → product, is ______.


In the reaction \[\ce{2SO2 + O2 -> 2SO3}\] the rate of appearance of SO3 is 4 × 10−4 M/s, the rate of disappearance of O2 is ____________.


The half-life of a first order reaction is 6.0 hour. How long will it take for the concentration of reactant to decrease from 0.4 M to 0.12 M?


Which among the following is an example of zero order reaction?


A first order reaction is 50% completed in 16 minutes. The percentage of reactant that will react in 32 minutes is ____________.


A certain zero order reaction has rate constant 0.025 M s-1. What will be the concentration of reactant 'A' after 15 seconds, if initial concentration is 0.50 M?


Which is the unit of rate constant for the first-order reaction if time is expressed in seconds?


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


Which among the following reactions is an example of pseudo first order reaction?


Calculate half-life of a first order reaction in minute if the rate constant is 1 × 10-3 s-1.


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.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×