What happens to the particles of a substance when it is heated and reaches its boiling point?
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15
The temperature at which a substance changes from solid to liquid is known as its ____________.
melting point
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15
On a heating curve, what does a plateau indicate?
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15
Describe the physical properties of gases(shape, volume, compressibility),
No fixed shape, no fixed volume, compressible.
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10
If you increase temperature and keep volume constant, pressure will ______.
increase
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15
This state of matter has particles that are close together and touching each other in a regular, repeating pattern. They vibrate about fixed positions but do not move apart.
Solid
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10
Which part of the graph shows a change of state?
a
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15
Which state changes are shown in this heating curve?
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15
Describe the forces of attraction between solid particles.
Particles are held together by very strong attractive forces.
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15
Which theory is this?
Kinetic particle theory
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15
The point on a cooling curve where a liquid starts to solidify is called the _______ point.
freezing
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The process of changing from a gas to liquid - the particles lose kinetic energy and come closer together. They eventually clump together in an irregular pattern.
