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Unit 6 & 7 Noncyclic

Total questions: 25

Worksheet time: 1hrs 1mins

Name
Class
Date
1.

This measures the average kinetic energy of molecules

a)

temperature

b)

heat

c)

Kevin

d)

Carbon dioxice

2.

Choose ALL the exothermic phase changes

a)

condensation

b)

boiling

c)

freezing

d)

vaporization

3.

The amount of energy required to raise the temperature 1ºC for every gram is called____?

a)

Thermal Energy

b)

Specific Heat

c)

Temperature

d)

Kinetic Energy

4.
What does temperature measure?
a)
Heat
b)
ºC
c)
Kinetic Energy
d)
Thermal Energy
5.

A metal cube at temperature of 70°C is immersed in water at temperature of 20°C. The metal _______ heat while the water __________ heat.

a)

gains, loses

b)

loses, gains

6.
What is the activation energy?
a)
40 kJ
b)
20 kJ
c)
100 kJ
d)
60 kJ
7.

What is the activation energy for the catalyzed reaction?

a)

75 kJ

b)

90 kJ

c)

25 kJ

d)

10 kJ

8.
How many moles are in a 18 L tank of nitrogen gas at STP? 
a)
0.9 moles
b)
1 mole
c)
0.8 moles
d)
0.75 moles 
9.

Calculate the number of molecules in 2.00 L of hydrogen, H2 at STP.

a)

5.38 x 1022 molecules H2

b)

1.08 x 1023molecules H2

c)

1.20 x 1024 molecules H2

d)

6.74 x 1024 molecules H2

10.
What volume of hydrogen will be produced at STP by the reaction 67.3 g of magnesium with excfess water according to the following reaction?
1Mg + 2H2O --> Mg(OH)2 + H2
a)
62L
b)
65L
c)
31L
d)
124L
11.
How do I change from moles to liters?
a)
divide by 22.4
b)
multiple by Avo number
c)
multiply by 22.4
d)
multiply by molar mass
12.
What line segment represents only the solid state?
a)
A-B
b)
B-C
c)
C-D
d)
D-E
13.
Which segment represents the heat of fusion?
a)
A-B
b)
B-C
c)
C-D
d)
D-E
14.
What state(s) of matter are present at D-E?
a)
Solid-liquid
b)
Liquid
c)
Liquid-gas
d)
Gas-Solid
15.
Between which points is the temperature of the substance increasing?
a)
A-B only. 
b)
A-B, C-D, E-F
c)
B-C only. 
d)
B-C, D-E
16.
What is the normal boiling point of this substance?
a)
150 °C
b)
100 °C
c)
-50 °C
d)
0 °C
17.
What state of matter is Y?
a)
solid 
b)
liquid
c)
gas
d)
supercritical fluid
18.
What state of matter is X?
a)
solid 
b)
liquid
c)
gas
d)
supercritical fluid
19.
What change occurs from E to C?
a)
sublimation
b)
freezing
c)
melting
d)
boiling
20.

What is the change of the heat of the reaction (ΔH)?

a)

-40 kJ

b)

-20 kJ

c)

100 kJ

d)

60 kJ

21.
Which letter represents the activation energy?
a)
B
b)
E
c)
C
d)
D
22.
What is the PE of the products?
a)
100 kJ
b)
175 kJ
c)
50 kJ
d)
75 kJ
23.
What is the PE of the reactants?
a)
100 kJ
b)
175 kJ
c)
50 kJ
d)
75 kJ
24.

If a catalyst for this reaction was present, which arrows would be affected?

a)

Arrow A

b)

Arrow B

c)

Arrow C

d)

Arrow D

e)

Arrows B and C

25.
Is the reaction endothermic or exothermic?
a)
Endothermic
b)
Exothermic
c)
Endoexo
d)
Exoendo

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