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WorksheetsPhase Changes and Phase Diagrams Heating Cure
Total questions: 21
Worksheet time: 17mins
Name
Class
Date
1.
What line segment represents only the solid state?
a)
A-B
b)
B-C
c)
C-D
d)
D-E
2.
Between which points is the temperature of the substance remaining constant?
a)
A-B only.
b)
A-B, C-D, E-F
c)
B-C only.
d)
B-C, D-E
3.
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
4.
True or false: melting and freezing occur at the same temperature!
a)
True
b)
False
c)
I don't know
5.
A substance's heating curve is shown in the graph. What is its boiling point?
a)
100 C
b)
60 C
c)
80 C
d)
20 C
6.
Between which two points is Heat of Fusion?
a)
A <----> B
b)
B <----> C
c)
C <----> D
d)
D <----> E
e)
E <----> F
7.
Between which two points is Heat of Vaporization?
a)
A <----> B
b)
B <----> C
c)
C <----> D
d)
D <----> E
e)
E <----> F
8.
Between which two points is Heat of Vaporization?
a)
A <----> B
b)
B <----> C
c)
C <----> D
d)
D <----> E
e)
E <----> F
9.
In which region(s) does temperature remain constant?
a)
Region 1, 3, & 5
b)
Region 2 & 4
c)
Region 1 only
d)
Region 1 & 2
10.
In which region(s) of the graph does a phase change occur?
a)
Region 1, 3, & 5
b)
Region 2 & 4
c)
Region 1 only
d)
Region 1 & 2
11.
In which region(s) of the graph would the substance be a solid only?
a)
Region 1
b)
Region 2
c)
Region 3
d)
Region 4
12.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
13.
A gas
a)
has a definite shape but no definite volume
b)
has a definite volume but no definite shape
c)
has fast-moving particles
14.
What state of matter is X?
a)
solid
b)
liquid
c)
gas
d)
supercritical fluid
15.
What state of matter is Y?
a)
solid
b)
liquid
c)
gas
d)
supercritical fluid
16.
What is the normal boiling point of this substance?
a)
150 °C
b)
100 °C
c)
-50 °C
d)
0 °C
17.
What is point B?
a)
triple point
b)
critical point
c)
equilibrium point
d)
normal melting point
18.
What change occurs from C to D?
a)
condensation
b)
vaporization
c)
melting
d)
sublimation
19.
What change occurs from E to C?
a)
sublimation
b)
freezing
c)
melting
d)
boiling
20.
In which segment is the kinetic energy remaining constant?
a)
A-B
b)
B-C
c)
C-D
d)
E-F
21.
What line segment represents only the solid state?
a)
A-B
b)
B-C
c)
C-D
d)
D-E
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