NEW
Font size
S
M
L
XL
WorksheetsSK015- 5.4- Phase Diagram
Total questions: 15
Worksheet time: 12mins
Name
Class
Date
1.
What state of matter is X?
a)
solid
b)
liquid
c)
gas
d)
supercritical fluid
2.
What state of matter is Y?
a)
solid
b)
liquid
c)
gas
d)
supercritical fluid
3.
What state of matter is Z?
a)
solid
b)
liquid
c)
gas
d)
supercritical fluid
4.
What is point A?
a)
triple point
b)
critical point
c)
equilibrium point
d)
normal melting point
5.
What is true regarding CO2 for temperatures above 31 °C?
a)
It can never be liquified.
b)
It decomposes.
c)
It has a high pressure.
d)
It is a plasma.
6.
What is the normal melting point of CO2?
a)
-78.5 °C
b)
-56.7 °C
c)
31 °C
d)
It doesn't have a normal melting point.
7.
What change occurs from E to C?
a)
sublimation
b)
freezing
c)
melting
d)
boiling
8.
What is the normal boiling point of this substance?
a)
150 °C
b)
100 °C
c)
-50 °C
d)
0 °C
9.
At 0.10 atm, what phase(s) can exist?
a)
solid, liquid or gas
b)
liquid or gas
c)
solid only
d)
gas only
10.
What letter on the diagram represents a liquid?
a)
A
b)
B
c)
C
d)
D
11.
What is the melting point of this substance at 1 ATM of pressure?
a)
40
b)
60
c)
100
d)
110
12.
What is the boiling point of this substance at 1 ATM of pressure?
a)
40
b)
60
c)
100
d)
110
13.
What letter on the diagram represents the triple point?
a)
A
b)
B
c)
C
d)
D
14.
What would the state of this substance be at 0.5 ATM of pressure at a 100 degrees Celsius?
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
15.
Water exists as a _____________ at 700 mmHg and 50 °C.
a)
solid
b)
liquid
c)
gas
d)
supercritical fluid
Reset
