wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Energy Diagrams

Total questions: 29

Worksheet time: 22mins

Name
Class
Date
1.

In the reaction depicted in the diagram,

a)

the energy content of the products is greater than the energy content of the reactants

b)

the energy content of the reactants is the same as the energy content of the products

c)

the energy content of the reactants is greater than the energy content of the products

2.

The activation energy (Ea) of this reaction is ___ kJ

a)

40

b)

-80

c)

80

d)

240

e)

-240

3.

The line that represents the heat of reaction (ΔH) of this reaction is

a)

A

b)

B

c)

C

d)

D

4.

The reaction whose energy diagram is shown here is

a)

Exothermic

b)

Endothermic

c)

Isothermic

5.

The heat of reaction (ΔH) of this reaction is

a)

240 kJ

b)

160 kJ

c)

-80 kJ

d)

-160 kJ

e)

80 kJ

6.

If a catalyst were added to this reaction, which lines would change?

a)

A only

b)

B only

c)

C only

d)

B and D

e)

A and C

7.

The heat content of the products is

a)

80 kJ

b)

160 kJ

c)

240 kJ

d)

100 kJ

8.

If you were holding in your hand a test tube in which the reaction above is taking place, it would

a)

feel hot, because energy is being absorbed

b)

feel cold, because energy is being absorbed

c)

feel hot, because energy is being released

d)

feel cold, because energy is being released

9.

The line that represents the activation energy (Ea) of this reaction is

a)

E

b)

D

c)

C

d)

B

e)

A

10.

The line that represents the heat of reaction (ΔH) of this reaction is

a)

A

b)

B

c)

C

d)

D

e)

E

11.

The heat of reaction (ΔH) of this reaction is

a)

-80 kJ

b)

240 kJ

c)

160 kJ

d)

80 kJ

e)

-160 kJ

12.

The reaction whose energy diagram is shown here is

a)

Exothermic

b)

Endothermic

c)

Isothermic

13.

The heat content of the products is

a)

80 kJ

b)

160 kJ

c)

240 kJ

d)

100 kJ

14.

The activation energy (Ea) of this reaction is

a)

- 80 kJ

b)

240 kJ

c)

40 kJ

d)

160 kJ

e)

80 kJ

15.

The line that represents the heat of reaction (ΔH) of this reaction is

a)

A

b)

B

c)

C

d)

D

e)

E

16.

If you were holding in your hand a test tube in which the reaction above is taking place, it would

a)

feel hot, because energy is being absorbed

b)

feel cold, because energy is being absorbed

c)

feel hot, because energy is being released

d)

feel cold, because energy is being released

17.

If a catalyst were added to this reaction, which lines would change? (hint think forward and reverse reactions)

a)

A only

b)

B only

c)

C only

d)

A and D

e)

B and C

18.

The activation energy (Ea) of this reaction is

a)

100 kJ

b)

40 kJ

c)

60 kJ

d)

20 kJ

19.

The heat of reaction (ΔH) of this reaction is

a)

100 kJ

b)

40 kJ

c)

60 kJ

d)

20 kJ

e)

-20 kJ

20.

The forward reaction is

a)

endothermic

b)

exothermic

c)

isothermic

d)

all of these

e)

endothermic and exothermic only

21.

The reverse reaction is

a)

endothermic

b)

exothermic

c)

isothermic

d)

all of these

e)

none of these

22.
What is the PE of the reactants?
a)
40 kJ
b)
20 kJ
c)
100 kJ
d)
60 kJ
23.
What is the change of the heat of the reaction (ΔH)?
a)
40 kJ
b)
20 kJ
c)
100 kJ
d)
60 kJ
24.
Which letter represents the PE of the products?
a)
B
b)
E
c)
C
d)
D
25.
What is the activation energy?
a)
100 kJ
b)
175 kJ
c)
50 kJ
d)
75 kJ
26.
Which number represents the activated COMPLEX?
a)
1
b)
2
c)
3
d)
4
27.
Is this reaction endothermic or exothermic?
a)
Endothermic
b)
Exothermic
c)
Exoendo
d)
Endoexo
28.

Substance that changes the rate of a chemical reaction without being consumed in the reaction

a)

bonding

b)

catalyst

c)

chemical reaction

d)

activation energy

29.

If a catalyst is added to the reaction above, what is the activation energy of the reaction?

a)

10 kJ

b)

25 kJ

c)

75 kJ

d)

90 kJ

e)

15 kJ

Similar Resources on Wayground

Types of Reactions Review

25 questions

Types of Reactions Review

quiz

Worksheet

•

10th Grade

Deriváty uhlovodíků

25 questions

Deriváty uhlovodíků

quiz

Worksheet

•

9th Grade

Stoichiometry

25 questions

Stoichiometry

quiz

Worksheet

•

11th Grade

PHYSICS+CHEMISTRY 2019

25 questions

PHYSICS+CHEMISTRY 2019

quiz

Worksheet

•

9th Grade

Polymerisation and polymers grade 9

25 questions

Polymerisation and polymers grade 9

quiz

Worksheet

•

9th Grade

Asesmen Akhir Semester Genap Fase E Kimia 2024/2025

25 questions

Asesmen Akhir Semester Genap Fase E Kimia 2024/2025

quiz

Worksheet

•

10th Grade

Iupac Naming

25 questions

Iupac Naming

quiz

Worksheet

•

9th Grade

MODELOS ATÓMICOS

25 questions

MODELOS ATÓMICOS

quiz

Worksheet

•

10th Grade