Objectives & Procedures: Gas Laws

6.3 – Boyle’s & Charles

Learning Objectives

  • Introduce the concepts and units of pressure, volume and temperature.
  • Experimentally determine the relationship between pressure and volume, using the MicroLAB interface system to collect and analyze the data.
  • Experimentally determine the relationship between temperature and volume, using the MicroLAB interface system to collect and analyze the data.

Procedure Overview

Boyle’s Law

  • Interface and syringe assembly set up and calibrated.
  • Pressure/volume data pairs taken at three different central volume settings.
  • Data analyzed and graphed, and questions answered.

Charles’ Law

  • Interface and thermistor assembly set up and calibrated.
  • Temperature/volume data pairs taken over wide temperature range.
  • Data analyzed and graphed, and questions answered.

6.4 – Dalton’s Law Part Press

Learning Objectives

  • Introduce the concept of ideal gases.
  • Experimentally determine the relationship between pressure and amount of gas, using the MicroLAB interface system to collect and analyze the data.
  • Experimentally determine how the addition of different gases affects Dalton’s law, using the MicroLAB interface system to collect and analyze the data.

Procedure Overview

Effect of added amounts of the same gas

  • Interface and syringe assembly set up and calibrated.
  • Erlenmeyer flask assembly evacuated repeatedly using the 60 ml syringe.
  • Pressure/amount data pairs taken by addition of 5 ml increments up to about 1200 torr.
  • Data analyzed and graphed, and questions answered.

Effect of added amounts of the different gases

  • Pressure/amount data pairs taken at a minimum of five additions each of at least three different gases to the suction flask.
  • Data analyzed and graphed, and questions answered.

6.5 – Gay-Lussac’s Law

Learning Objectives

  • Introduce the concepts and units of pressure, and temperature.
  • Experimentally determine the relationship between temperature and pressure, using the MicroLAB interface system to collect and analyze the data.

Procedure Overview

  • Interface and pressure probe assembly set up and calibrated.
  • Temperature-pressure data pairs taken over wide temperature range.
  • Data analyzed and graphed, and questions answered.

8.5 – Catalyzed Decomposition of Hydrogen Peroxide

Learning Objectives

  • Introduce the concepts and units of pressure, catalysts and kinetics.
  • [2 2] – Use pressure to monitor the kinetics of the catalytic decomposition of hydrogen peroxide, H O , using the MicroLAB interface system to collect and analyze the data.
  • Experimentally determine