Kinetic Particle Theory

Which of the following properties can be used to describe the particles in the three states of matter?

• Kinetic energy

• Forces of attraction

• Movement

• Arrangement

• Size

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Kinetic particle Theory

Which of the following described the properties of particles in solid?

• Closely packed in orderly manner

• Vibrate about fixed position

• Very strong forces of attraction

• Low kinetic energy

• slide past each other

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Kinetic particle Theory

Which of the following described the properties of particles in liquid?

• Closely packed in orderly manner

• slide over each other

• Vibrate about fixed position

• Low kinetic energy

• Closely packed in disorderly,random manner

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Kinetic particle Theory

Which of the following described the properties of particles in gas?

• very far apart

• move randomly at high speed in all direction

• Vibrate about fixed position

• high kinetic energy

• Closely packed in disorderly,random manner

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Kinetic particle Theory

The cover-plates were removed from the gas jars in the apparatus shown below. It was seen that after several days, the colour of the gas was the same in both jars. What is the best explanation for this?

• Both gases contain equal numbers of molecules.

• Both gases have equal densities.

• Oxygen and fluorine molecules are moving rapidly in all directions.

• Oxygen and fluorine molecules diffuse at the same rate.

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Kinetic particle Theory

The boiling points of various gases found in the air are shown below. If the air is cooled, the first substance to condense is water.

If the temperature is lowered further, what is the next substance to condense?

• argon

• carbon dioxide

• nitrogen

• oxygen

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Kinetic particle Theory

Which changes occur when a liquid at 50^oC becomes a gas at 120^oC?

• A

• B

• C

• D

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Kinetic particle Theory

Which diagram represents the arrangement of particles in a gas?

• 
• 
• 
• 

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Kinetic particle Theory

Bromine is a liquid at 20 °C.

What is the melting point and boiling point for bromine?

• A

• B

• C

• D

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Kinetic particle Theory

A beaker containing solid carbon dioxide is placed in a fume cupboard at room temperature. The carbon dioxide becomes gaseous.

Which process describes this change of state?

• boiling

• condensation

• evaporation

• sublimation

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Kinetic particle Theory