THEORY QUESTIONS ON CHEMICAL KINETICS

INSTRUCTION:- Post your answers into the COMMENT or DISCUSSION BOX.

 

 

 

QUESTION 1.

Chemical kinetics is concerned with ____ ?

(A). Measurement of heat of reactions

 

(B). Determination of the rate at which chemical reactions occur

 

(C). Measurement of entropy of reactions

 

(D). Determination of activation energy of reactions.

 

 

 

QUESTION 2.

Which of the following is not one of the factors affecting the rate or speed of a chemical reaction?

 

(A). Temperature of reactants

 

(B). Color of reactants

 

(C). concentration of reactants

 

(D). Surface area of the reactants

 

 

 

 

 

QUESTION 3.

According to chemical kinetics study, the rate of chemical reactions doubles at every ____ degrees rise in temperature?

 

(A). 10

 

(B). 5

 

(C). 100

 

(D). 1

 

 

 

 

QUESTION 4.

According to kinetic theory, an increase in temperature of the reactant increases the rate or speed of a chemical reaction due to ____ ?

 

(A). An increase in the volume of the system

 

(B). An increase in concentration of the reactants

 

(C). A decrease in the vibrational energy between the reacting particles.

 

(D). An increase in the vibrational energy between the reacting particles.

 

 

 

 

QUESTION 5.

Study of chemical kinetics shows that,  in order to yield the expected products of a chemical reaction, _____?

 

(A). The energy of the reactants must exceed the energy barrier of the reaction

 

(B). The energy of the product must be less than the energy barrier of the reaction

 

(C). The energy of the reactants must be equal to the energy barrier of the reaction

 

(D). The energy of the expected products must be equal to the energy barrier of the reaction

 

 

 

 

QUESTION 6.

The addition of a catalyst in a chemical reaction increases the speed of the reaction by ____?

 

(A). Increasing the pressure of the system

 

(B). Decreasing the volume of the system

 

(C). Decreasing the energy barrier of the reaction

 

(D). Increasing the temperature of the reaction

 

 

 

 

QUESTION 7.

A chemical reaction whose speed or rates does not depend on the concentration of the reactants is known as _____ order reaction?

 

(A). zero

 

(B). first

 

(C). second

 

(D). spontaneous

 

 

 

 

QUESTION 8.

In which of the following states of matter is the rate of a chemical reaction fastest?

 

(A). liquid

 

(B). Solid

 

(C). Gas

 

(D). aqueous

 

 

 

 

 

QUESTION 9.

Reactants in ionic phase have higher reaction rate than reactants in neutral phase due to the presence of ____?

 

(A). presence of higher temperature in ionic phase

 

(B). lightness of ionic substances

 

(C). presence of mobile electrons in ionic substances

 

(D). present of mobile electrons in neutral substances

 

 

 

 

 

QUESTION 10.

The plot of the concentration per unit time of a chemical reaction gives rise to the ___?

 

(A). Enthalpy change of the reaction

 

(B). Activation energy of the reaction

 

(C). Rate of the reaction

 

(D). Temperature change of the reaction

 

 

 

 

NOTE.

you are to post your answers into the COMMENT BOX or DISCUSSION BOX.

 

 

 

 

Good luck…. +2348060113736.

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Clyde
Clyde
June 15, 2020 7:06 pm

1. B
2. B
3. C
4. C
5. A
6. C
7. D
8. C
9. A
10. C

Clyde
Clyde
June 16, 2020 3:46 pm
Reply to  Clyde

4. D

Plugstuck
June 15, 2020 7:16 pm

This is awesome! 👏

Plugstuck
June 15, 2020 7:18 pm

Great content. 👍

Benitha Benson
Benitha Benson
June 15, 2020 8:41 pm

Benitha Benson
1)B
2)B
3)A
4)B
5)D
6)C
7)A
8)c
9)c
10)c

Uchenna Stephen
Uchenna Stephen
June 16, 2020 8:51 am

1. B
2. C
3. A
4. B
5. C
6. C
7. A
8. C
9. C
10. C

Onyi
Onyi
June 16, 2020 1:12 pm

1. B
2. B
3. A
4. D
5. A
6.C
7. A
8. C
9. C
10. C

Xandra
June 16, 2020 2:47 pm

Xandra
1:B
2:D
3:A
4:D
5:A
6:C
7:A
8:C
9:C
10:D

Deceiver
Deceiver
June 16, 2020 3:15 pm

B
B
C
D
A
C
A
C
A
B
From Divine @deceiver

Juliet mmesoma
Juliet mmesoma
June 16, 2020 3:47 pm

1.B
2.B
3.A
4.D
5.A
6.C
7.A
8.C
9.C
10.C

Clyde
Clyde
June 16, 2020 3:47 pm

1. B
2. B
3. C
4. D
5. A
6. C
7. D
8. C
9. A
10. C

Stephanie
Stephanie
June 16, 2020 4:11 pm

1 C
2 B
3 A
4 B
5 A
6 C
7 A
8 C
9 C
10 C

Stephanie
Stephanie
June 16, 2020 4:16 pm
Reply to  Stephanie

1 B

Nonso
June 16, 2020 4:15 pm

Thanks catalyst

Onuwabueze marvelous
June 16, 2020 4:22 pm

Great 💯💯💯

Onuwabueze marvelous
June 16, 2020 4:25 pm

Marvel
1 B
2 B
3 A
4 D
5 A
6 C
7 A
8 C
9 C
10 C

Plugstuck
June 16, 2020 4:31 pm

I’ve finally rectified the comment issue.

Amos
Amos
June 16, 2020 5:05 pm

Amos

1. B
2. B
3. A
4. D
5. A
6. C
7. A
8. C
9. C
10. C

Orisakwe Emmanuel
Orisakwe Emmanuel
June 16, 2020 6:38 pm

Orisakwe Emmanuel
1) b
2)b
3) a
4) b
5)c
6)c
7)a
8)c
9)c
10)c

Jane
June 16, 2020 6:42 pm

1.B
2B
3A
4.D
5.A
6C
7.A
8.C
9.C
10.C

Xandra
June 16, 2020 6:50 pm

Xandra
1:B
2:B
3:A
4:D
5:A
6:C
7:A
8:C
9:C
10:C

Xandra
June 16, 2020 6:58 pm
Reply to  Xandra

Sir pls this is my correct answer

freda chi
June 16, 2020 7:47 pm

1. B
2. B
3. D
4. D
5. A
6. C
7. D
8. C
9. C
10. C

Gideon
Gideon
June 16, 2020 9:05 pm

1.D
2.B
3.C
4.B
5.C
6.D
7.D
8.C
9.C
10.C

Gideon
Gideon
June 16, 2020 9:25 pm
Reply to  Gideon

1.B

Valentina
June 16, 2020 9:16 pm

B
B
A
B
C
D
D
C
A
B

Chinaza
June 16, 2020 9:40 pm

I .B
2. B
3.c
4.b
5 .d
6.d
7.d
8.c
9.c
10.a

Mmeso u
Mmeso u
June 16, 2020 10:55 pm

1.B
2. B
3. D
4. D
5. A
6. C
7. D
8. C
9. C
10.C

Chidera
Chidera
June 17, 2020 6:35 am

Great

Chidera
Chidera
June 17, 2020 6:50 am

1.B
2.B
3.A
4.D
5.A
6.C
7.A
8.A
9.C
10.C

Cynthia 1B 2B 3A 4D 5A 6C 7A 8C 9C 10C
Cynthia 1B 2B 3A 4D 5A 6C 7A 8C 9C 10C
June 17, 2020 8:05 am

1B
2B
3A
4D
5A
6C
7A
8C
9C
10C

Gbest
June 17, 2020 10:01 am

1.B
2.B
3.A
4.D
5.A
6.C
7.A
8.C
9.C
10.C

Lambert
Lambert
June 17, 2020 11:34 am

1. B
2. B
3. C
4. B
5. A
6. B
7. A
8. C
9. A
10. C

Daniel
Daniel
June 17, 2020 12:13 pm

1 B
2 B
3. A
4 D
5 A
6. C
7. A
8. C
9. C
10. C

Daniel Chisom
Daniel Chisom
June 17, 2020 2:10 pm

1 B
2 B
3 A
4D
5A
6C
7D
8C
9C
10C

Chifaith
Chifaith
June 17, 2020 2:45 pm

1B
2B
3D
4D
5A
6C
7A
8C
9C
10C

Uba Henry
Uba Henry
June 17, 2020 3:18 pm

1.B
2.B
3.D
4.C
5.A
6.C
7.D
8.D
9.C
10.B

Precious
Precious
June 17, 2020 3:56 pm

1.B
2.B
3.A
4.D
5.A
6.C
7.A
8.C
9.C
10..C

Louis levi
Louis levi
June 17, 2020 4:42 pm

C,B,A,D,A,C,A,C,C,C

Chigoo
Chigoo
June 17, 2020 6:56 pm

1. B
2. B
3. A
4. D
5. A
6. C
7. A
8. C
9. C
10. C

Precious Chima
Precious Chima
June 17, 2020 7:44 pm

1)B
2)B
3)C
4)C
5)A
6)C
7)A
8)C
9)C
10)C
Precious Chima

Emmanuel
June 18, 2020 1:55 am

1B
2b
3d
4d
5a
6a
7a
8c
9c
10c

Godstime
June 18, 2020 4:09 am

Godstime
1. B
2. B
3. A
4. D
5. A
6. C
7. A
8. C
9. C
10.C

Humble genius
Humble genius
June 18, 2020 9:02 pm

(1) B
(2) C
(3) A
(4) D
(5) A
(6) C
(7) A
(8) D
(9) C
(10) C
HUMBLE GENIUS 😎

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