CBSE Class 12 Chemistry Chemical Kinetics Worksheet Set D

Read and download free pdf of CBSE Class 12 Chemistry Chemical Kinetics Worksheet Set D. Download printable Chemistry Class 12 Worksheets in pdf format, CBSE Class 12 Chemistry Unit 4 Chemical Kinetics Worksheet has been prepared as per the latest syllabus and exam pattern issued by CBSE, NCERT and KVS. Also download free pdf Chemistry Class 12 Assignments and practice them daily to get better marks in tests and exams for Class 12. Free chapter wise worksheets with answers have been designed by Class 12 teachers as per latest examination pattern

Unit 4 Chemical Kinetics Chemistry Worksheet for Class 12

Class 12 Chemistry students should refer to the following printable worksheet in Pdf in Class 12. This test paper with questions and solutions for Class 12 Chemistry will be very useful for tests and exams and help you to score better marks

Class 12 Chemistry Unit 4 Chemical Kinetics Worksheet Pdf

CHEMICAL KINETICS
 
1. Why does the rate of a reaction not remain constant throughout the reaction process? (2010)
 
2. The rate of a reaction is 1.2 x 10-3 L/mol/s. What is the order of the reaction?
 
3. Define the following terms :
 
a) Half-life of a reaction (t½)
b) Rate constant (k) (2015)
 
4. A first order decomposition reaction takes 40 minutes for 30% decomposition. Calculate its t1/2 value. (2008)
 
5. Show that for a first order reaction, the time required for half the change is independent of initial concentration. (2010)
 
6. A reaction is first order in A and second order in B.
a) Write differential rate equation.
b) How is the rate affected when the concentration of A is tripled?
How is the rate affected when the concentration of both A and B are doubled?
 
7. An artifact containing wood has only 80% of the C14 activity found in a living tree. Estimate the age of the artifact if t1/2 of C14 is 5730 years.
 
8. The time required for 10% completion of a first order reaction at 298 K is equal to that required for its 25% completion at 308K.if the value of A is 4 x 1010/s, calculate k at 318K and Ea
 
9. (a) For a reaction A + B → P, the rate is given by Rate = k[A]2[B]
(i) How is the rate of reaction affected if the concentration of A is doubled?
(ii) What is the overall order of reaction if B is present in large excess?
(b) A first order reaction takes 23.1 minutes for 50% completion. Calculate the time required for 75% completion of this reaction.
(Given : log 2 = 0.301, log 3 = 0.4771, log 4 = 0.6021)
 
10. a) Explain the following terms:
i) Order of reaction
ii) Molecularity of a reaction
b) The rate of a reaction increases four times when the temperature changes from 300K to 320K. Calculate the energy of activation of the reaction assuming that it does not change with temperature. (R = 8.314 J K-1 mol-1)
 
11.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.
 
12.The following results have been obtained during the kinetic studies of the reaction: 2A + B → C + D

CBSE Class 12 Chemistry Chemical Kinetics Worksheet Set A 1

Determine the rate law and rate constant for the reaction.
 
13.For the decomposition of azoisopropane into hexane and nitrogen at 543K , the following data were obtained. Calculate the rate constant.
 
T(sec)                 P (mm of Hg)
  0                          35
  360                      54
  720                      63


Please click on below link to download CBSE Class 12 Chemistry Chemical Kinetics Worksheet Set A

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CBSE Class 12 Chemistry Unit 4 Chemical Kinetics Worksheet

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