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4.3 CW - Heating Curve Practice

Total questions: 15

Worksheet time: 30mins

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.

What particle diagram represents this substance during line segment CD

a)
b)
c)
d)
e)
3.

A substance's heating curve is shown in the graph. What is its boiling point?

a)

100oC

b)

60oC

c)

80oC

d)

20oC

4.

Where will the temperature be remaining constant?

a)

A-B only.

b)

A-B, C-D, E-F

c)

B-C only.

d)

B-C, D-E

5.
In which segment is the kinetic energy remaining constant?
a)
A-B
b)
B-C
c)
C-D
d)
E-F
6.

The graph shows a COOLING curve for an unknown substance. What is happening during segment DE?

a)

boiling

b)

condensation

c)

freezing

d)

melting

7.

The graph shows a COOLING curve for an unknown substance. What is happening during segment DE?

a)

boiling

b)

condensation

c)

freezing

d)

melting

8.

What particle diagram represents this substance during line segment DE

a)
b)
c)
d)
e)
9.

Which of the following has particles with the lowest kinetic energy

a)

10 grams of NaCl at 10oC

b)

10 grams of NaCl at 70oC

c)

10 grams of NaCl at -20oC

d)

10 grams of NaCl at 100oC

10.

What particle diagram represents this substance during line segment BC

a)
b)
c)
d)
e)
11.

During which line segment(s) is Kinetic Energy Increasing and Potential Energy remaining constant?

(select ALL correct answers)

a)

AB

b)

BC

c)

CD

d)

DE

e)

EF

12.

During which line segment(s) is Kinetic Energy remaining constant and Potential Energy is increasing?

(select ALL correct answers)

a)

AB

b)

BC

c)

CD

d)

DE

e)

EF

13.

Which of the following accurately describes the energy of the particles during line segment BC?

a)

Potential energy is increasing while kinetic energy is decreasing.

b)

Kinetic energy is increasing while potential energy is decreasing.

c)

Kinetic energy is increasing while potential energy remains constant.

d)

Potential energy is increasing while kinetic energy remains constant.

14.

What particle diagram represents the phase of matter that Gallium (Ga - atomic # 31) is found in at 303K?

Use Table S

a)
b)
c)
d)
e)
15.

What phase of matter is Chlorine found in at Standard Temperature, 273K?

a)

Solid

b)

Liquid

c)

Gas