मराठी
महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Time required for 100% completion of a zero order reaction is _______. - Chemistry

Advertisements
Advertisements

प्रश्न

Time required for 100% completion of a zero order reaction is _______.

पर्याय

  • a/k

  • a/2k

  • a.k

  • 2k/a

MCQ
रिकाम्या जागा भरा

उत्तर

Time required for 100% completion of a zero-order reaction is a/k.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 6: Chemical Kinetics - Multiple choice questions

APPEARS IN

संबंधित 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?


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

The half-life of a first-order reaction is 1.7 hours. How long will it take for 20% of the reactant to react?


Answer the following in brief.

What are the units of the rate constant?


The rate of catalysed reaction is large than the uncatalysed reaction as _______.


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?


Define half life of a reaction.


Write units of rate constants for:

  1. First-order reaction
  2. Zero-order 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


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)


The rate constant of a reaction is 5.8 × 10−2 s−1. The order of the reaction is ____________.


If 75% of a first order reaction was completed in 60 minutes, 50% of the same reaction under the same conditions would be completed in ____________.


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 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 time of completion of 90% of a first order reaction is approximately ____________.


Half-life period of a first order reaction, \[\ce{A -> product}\] is 3.0 hours. What is the value of rate constant?


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


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


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 pseudo first order reaction?


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


0.0210 M solution of N2O5 is allowed to decompose at 43°C. How long will it take to reduce to 0.0150 M?
(Given k = 6.0 × 10−4 sec−1)


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


Which of the following reactions is not of the first order?


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?


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? 


Which is the relation between half life and rate constant for a zero order?


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?


The half-life of first order reaction is 1.7 hour. What is its rate constant?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×