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- 1. Multiple Choice
Name this graph.
Cooling curve of naphthalene
Heating curve of naphthalene.
- 2. Multiple Choice
What happened at point AB?
The particles release heat and move slower due to the lost of kinetic energy.
The particles absorb heat energy and vibrate faster because kinetic energy increases.
- 3. Multiple Choice
What happened at point BC?
No increase in temperature, because heat energy absorb by particles is used to overcome the attraction forces between the particles.
The particles absorb heat energy and vibrate faster because kinetic energy increases.
Temperature decreases, the particles release heat and move slower due to the lost of kinetic energy.
No decrease in temperature, because heat energy that is lost to the surroundings is balanced by the heat energy released when the particles attract each other to form solid
- 4. Multiple Choice
Name this graph.
Cooling curve of naphthalene
Heating curve of naphthalene.
- 5. Multiple Choice
What happened at point FG?
The particles release heat and move slower due to the lost of kinetic energy.
The particles absorb heat energy and vibrate faster because kinetic energy increases.
- 6. Multiple Choice
What happened at point FG
No increase in temperature, because heat energy absorb by particles is used to overcome the attraction forces between the particles.
The particles absorb heat energy and vibrate faster because kinetic energy increases.
Temperature decreases, the particles release heat and move slower due to the lost of kinetic energy.
No decrease in temperature, because heat energy that is lost to the surroundings is balanced by the heat energy released when the particles attract each other to form solid
- 7. Multiple Choice
Substance A melts at -101.0°C and boils at -35.0°C.
Which of the following is the arrangement of particles of substance A?
- 8. Multiple Choice
Substance B melts at 801.0°C and boils at 1413°C.
Which of the following is the arrangement of particles of substance B?
- 9. Multiple Choice
Substance C melts at -94.0°C and boils at 65.0°C.
Which of the following is the arrangement of particles of substance C?
- 10. Multiple Choice
All substances have the same melting and boiling points
false
true
- 11. Multiple Choice
What causes the particles in a substance to move faster and farther apart?
matter
energy
water
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