Exam code: J250
A sealed boiling tube contains gas.
The boiling tube is heated.
What happens?
The particles in the gas evaporate.
The particles in the gas expand.
The particles in the gas move faster.
The particles in the gas move slower.
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A popular demonstration of kinetic theory is to view smoke particles through a microscope, while illuminating them with a bright light.
The diagram shows the view of the smoke particles through a microscope. They are moving about randomly.
What causes the motion of the smoke particles?
The smoke particles are attracted to each other.
The smoke particles vibrate because they are warm.
Smaller air particles are colliding with the smoke particles.
The microscope is vibrating slightly, making the smoke particles appear to move.
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Air is trapped inside a cylinder. The volume of the cylinder cannot change.
The temperature of the air is increased.
Which of the graphs below shows the correct relationship between pressure and temperature?
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