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10 Cards in this Set
- Front
- Back
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Properties of solid
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At a given temperature, has a definite shape which maybe affected by temperature. Usually increases in size (expansion) when heated and decreases in size (contraction) when cooled
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Properties of liquid
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At a given temperature, has a fixed volume and will take the shape of the container into which it is poured.
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Properties of gas
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At a given temperature, has neither a definite shape nor volume. It will take up the shape of the container into which it is placed and will spread out evenly
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Differences between solids, liquids and gases.
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liquids and gases are relatively compressible unlike solids. Meaning that their volumes can be changed with the application of pressure.Gas is more compressible than liquid.
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Structure of solids
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Particles vibrate in a fixed position. It has a regular structure
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Structure of liquids
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Particles have some freedom and can move around each other. Particle often collide
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Structure of gases
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Particles move freely and at random in all the space available. Collide less often than in liquids.
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What is diffusion
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The spreading out of a gas. For example leaving perfume bottles open. it is caused by the movement of random particles
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What affects the rate of reaction?
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The rate of reaction is affected by the molecular mas of the particles. The greater the molecular mass, the faster the rate of diffusion
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Example of different rates of reaction
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Ammonia and hydrochloric gas. Ammonia being a gas with higher molecular gas, diffuses more than the hydrochloric gas.
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