Unit 1 Gases
Introduction
Gases are a part of our everyday lives. The atmosphere, mainly oxygen and nitrogen gas, weighs down on us constantly, and our lungs expand and contract as we breathe. We are alerted by the scent of food or perfume wafting through the air. These properties of gases are different from other states of matter, solids and liquids. In CHEM 1523, we will study mathematical relationships among these properties to explain and predict gas behaviour.
Unit Learning Objectives
- Define the properties of gases: pressure, amount of gas, volume and temperature.
- Predict the behaviour of gases using gas laws, the kinetic-molecular theory of gases, and Graham’s law of diffusion and effusion.
- Calculate the amount of gas in a mixture and in a chemical reaction.
Unit 1 Sections
1.3 The Kinetic-Molecular Theory of Gases
1.4 Graham’s Law of Diffusion and Effusion
1.5 Gas Phase Reactions and Mixtures of Gases
Each section has a reading portion, self-check question, and a set of practice exercises with solutions. This course has a strong emphasis on solving problems by applying concepts from the reading portions. Thus, working through the self-check questions and practice exercises is important for learning how to apply concepts in chemistry. The supplementary resources and supplementary activities within the sections are not for marks but provide alternative perspectives to enhance understanding of the course material.
Unit 1 Assignment (on Moodle)
The Unit 1 Assignment includes concepts from all the sections of the unit, and is worth 10% of the course grade.
