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# Diffusion and Effusion

## Perform calculations involving the movement of gases

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Diffusion and Effusion and Graham's Law

Covers the processes of diffusion and effusion and gives examples of calculations involving these parameters.

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• PLIX

## Graham's Law

Diffusion and Effusion Interactive

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• Video

## Diffusion of Bromine Vapor

Shows the diffusion of bromine gas up a test tube.

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## Diffusion and Effusion and Graham's Law Quiz

Reviews the processes of diffusion and effusion and how to use Graham's law to perform calculations involving the movement of gases.

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• Practice
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## Diffusion and Effusion Practice

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To reinforce and increase concept comprehension, and to analyze similarities and differences between topics using a Two Column Table.

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To stress understanding of a concept by summarizing the main idea and applying that understanding to create visual aids and generate questions and comments using a Concept Matrix.

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## Diffusion and Effusion and Graham's Law PreRead

To describe images using words using the Visual Literacy strategy.

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• Real World Application