हिंदी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Time required to decompose SO2Cl2 to half of its initial amount is 60 minutes. If the decomposition is a first order reaction, calculate the rate constant of the reaction.

Advertisements
Advertisements

प्रश्न

Time required to decompose SO2Cl2 to half of its initial amount is 60 minutes. If the decomposition is a first order reaction, calculate the rate constant of the reaction.

संख्यात्मक
Advertisements

उत्तर

Given: Time (t) = 60 minutes

We know that for a first-order reaction,

k = `0.693/(t_(1//2))`

= `0.693/(60 min)`

= 1.155 × 10−2 min−1

or,

k = `0.693/(60 xx 60 s)`

= 1.925 × 104 s−1

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 3: Chemical Kinetics - Intext Questions [पृष्ठ ७८]

APPEARS IN

एनसीईआरटी Chemistry Part 1 and 2 [English] Class 12
अध्याय 3 Chemical Kinetics
Intext Questions | Q 3.6 | पृष्ठ ७८
नूतन Chemistry [English] Class 12 ISC
अध्याय 3 Chemical Kinetics
REVIEW EXERCISES | Q 4.44 | पृष्ठ २३७

संबंधित प्रश्न

In a pseudo first order reaction in water, the following results were obtained:

t/s 0 30 60 90
[A]/mol L−1 0.55 0.31 0.17 0.085

Calculate the average rate of reaction between the time interval 30 to 60 seconds.


Following data are obtained for reaction :

N2O5 → 2NO2 + 1/2O2

t/s 0 300 600
[N2O5]/mol L–1 1.6 × 10-2 0.8 × 10–2 0.4 × 10–2

1) Show that it follows first order reaction.

2) Calculate the half-life.

(Given log 2 = 0.3010, log 4 = 0.6021)


Define order of reaction. How does order of a reaction differ from molecularity for a complex reaction? 


 A first order reaction is 50% complete in 25 minutes. Calculate the time for 80% completion of the reaction.


A first order reaction is 50% completed in 1.26 × 1014 s. How much time would it take for 100% completion?


Which of the following graphs is correct for a first order reaction?


State a condition under which a bimolecular reaction is kinetically first order reaction.


With the help of an example explain what is meant by pseudo first order reaction.


The rate constant of a first order reaction is 6.9 × 10–3s–1. How much time will it take to reduce the initial concentration to its 1/8th value?


In the first order reaction, half of the reaction is complete in 100 seconds. The time for 99% of the reaction to occurs will be


The reaction X → product

Follow first order of kinetics. In 40 minutes the concentration of 'X' changes from 0.1 m to 0.025. M. The rate of reaction when concentration of X is 0.01 m is.


Gaseous cyclobutene isomerizes to butadiene in a first order process which has a 'k' value of 3.3 × 10−4 s−1 at 153°C. The time in minutes it takes for the isomerization to proceed 40% to completion at this temperature is ______. (Rounded-off to the nearest integer)


A definite volume of H2O2 undergoing spontaneous decomposition required 22.8 c.c. of standard permanganate solution for titration. After 10 and 20 minutes respectively the volumes of permanganate required were 13.8 and 8.25 c.c. The time required for the decomposition to be half completed is ______ min.


The reaction \[\ce{SO2Cl2(g) -> SO2(g) + Cl2(g)}\] is a first-order gas reaction with k = 2.2 × 10−5 sec−1 at 320°C. The percentage of SO2Cl2 is decomposed on heating this gas for 90 min, is ______%.


How will you represent first order reactions graphically?


What is the rate constant?


Write the equation for integrated rate law for a first order reaction.


Show that `t_(1/2)= 0.693/k` for first reaction.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×