Activity Number
323
Editable
Overview and Learning Objectives
Classroom Practice
Central Concepts
Extensions and Connections
Activity Credits

Gas Laws (SAM) (an 8 pp 1 or 2 day activity)

Interactive, scaffolded model

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Overview and Learning Objectives

Students explore how volume, pressure, temperature and density of gas molecules interrelate. They cover Boyleʹs, Charlesʹs, Gay‐Lussacʹs and Avogadroʹs Laws. They are then are asked to solve a challenge.

Students will be able to:

• Describe gas pressure as it relates to collisions of molecules on a surface of an object.

• Explore the relationship between pressure, volume, temperature, and number of particles as shown in the Ideal Gas Law (PV = nRT).

• Describe the relationship between pressure and volume in a gas. (Boyle’s Law)

• Describe the effect of varying the temperature on the volume of a gas. (Charles’ Law)

• Describe the relationship between temperature and pressure in a gas. (Gay‐Lussac’s Law)

• Explain the relationship between the number of particles and volume of a gas as demonstrated by Avogadro’s Law.

• Create a model demonstrating why the soda can collapsed and explain the model using the gas laws.

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Classroom Practice

Teacher's Guide:

http://sam.concord.org/publications/teacher-guides/gas_laws.ver4.pdf

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Central Concepts

Key Concept:

The Ideal Gas Law describes the relationship among pressure, temperature, volume and number of gas molecules. It can be expressed by an equation PV=nRT, where P is pressure, V is volume, n is the number of particles, R is a constant and T is temperature.

Additional Related Concepts

Physics/Chemistry

  • Gas
  • Pressure
  • Temperature

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Extensions and Connections

Fermi Lab ARISE Project suggests the following enhancements and extensions:

http://www.concord.org/~barbara/SAM/ARISE/ARISE_SAM_gaslaws.pdf

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Activity Credits

using Molecular Workbench

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NSF Logo
These materials are based upon work supported
by the National Science Foundation under grant numbers
9980620, ESI-0242701, EIA-0219345, DUE-0402553, and 0628181.

Any opinions, findings, and conclusions or recommendations expressed in this
material are those of the author(s) and do not necessarily reflect
the views of the National Science Foundation.