Module 3 Intro
1. Module 3 Intro
1.18. Page 5
Module 3—Behaviour of Gases
Reflect on the Big Picture
High-Altitude Balloons
Throughout this module you will be asked to consider technologies that apply the use of one or more of the gas laws. For your combined unit and module assessment, you will prepare a response on a technology that applies gas laws. To prepare your response, consider the following information relating to the gases necessary for high-altitude flights. Refer to the Unit Assessment document for more information.
Large compressed gas cylinders containing oxygen, and others containing propane, are situated along the side of the Breitling Orbiter 3. A combustion reaction involving these two gases is used to heat the gases within the balloon. When planning the flight, the balloonists needed to know how many canisters of each gas, propane and oxygen, to carry.
Use your knowledge of the gas laws to explain how the law of combining volumes or Avogadro’s theory is incorporated in the design of the system to heat the gases in a high-altitude balloon.
Save a copy of your explanation in your course folder. You may wish to use this explanation when completing the unit assessment. For more information on the unit assessment, refer to the Unit Assessment section.
Assessment
There is no Module 3: Lesson 3 Assignment.
In this lesson you continued to consider technologies that apply the use of one or more of the gas laws. Later you will be given instructions about submitting the combined unit/module assessment to your teacher.