hich state of matter has neither definite shape nor volume? a) Solid b) Liquid c) Gas d) Plasma
C
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15
The average kinetic energy of particles is directly related to: a) Density b) Volume c) Temperature d) Pressure
C
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15
When temperature increases, particle motion: a) Slows down b) Stops c) Speeds up d) Disappears
C
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15
A substance changes from liquid to gas at its: a) Melting point b) Boiling point c) Freezing point d) Condensation point
B
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15
The process of a solid changing directly to a gas is called: a) Condensation b) Sublimation c) Freezing d) Melting
B
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15
Dry ice turns directly into carbon dioxide gas at room temperature. This is an example of: a) Deposition b) Sublimation c) Condensation d) Melting
B
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15
Sublimation occurs because particles: a) Gain enough energy to break free from solid forces b) Lose energy and vibrate slower c) Stay in place d) Move closer together
A
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15
According to the Kinetic Molecular Theory, pressure increases when gas is heated because: a) The particles get larger b) The container expands c) Particles move faster and hit the walls more often d) The number of particles increases
C
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15
The Kinetic Molecular Theory assumes that gas particles: a) Have strong attractions b) Are in constant random motion c) Do not collide d) Are motionless at room temperature
B
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15
On a cold morning, droplets form on the outside of a cold drink can. What change of state does this show? a) Evaporation â gas to liquid b) Condensation â gas to liquid c) Deposition â gas to solid d) Melting â solid to liquid
B
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15
Which change of state releases heat energy? a) Melting b) Evaporation c) Freezing d) Sublimation
C
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15
Doubling the temperature of a gas (constant volume) affects its pressure by: a) Doubling it b) Halving it c) No change d) Quadrupling it
A
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15
Which state of matter has the strongest intermolecular forces? a) Solid b) Liquid c) Gas d) Plasma