Phase diagram is a graphical representation of the physical states of a substance under different conditions of temperature and pressure. A typical phase diagram has pressure on the y-axis …

Because most gases are difficult to observe directly, they are described through the use of four physical properties or macroscopic characteristics: pressure, volume, number of particles …

Mar 25, 2025 · Gas, one of the three fundamental states of matter, with distinctly different properties from the liquid and solid states. The remarkable feature of gases is that they appear …

Measure the temperature and pressure, and discover how the properties of the gas vary in relation to each other. Examine kinetic energy and speed histograms for light and heavy …

Mar 23, 2021 · Examples of gases include air, water vapor, and helium. A gas is a state of matter that has no fixed volume or shape. In other words, a gas takes the shape and volume of its …

This diagram shows the relative abundances of the main gases in Earth's atmosphere. Nitrogen makes up 78%, oxygen about 21% and argon almost 1%. Lesser constituents include carbon …

There are lots of different gases, such as the air we breathe or the helium used to fill balloons. The particles in gases are widely spaced and randomly arranged, meaning they can be easily...

Aug 19, 2020 · Particles in a gas have more energy than in solids or liquids. They tend to be further apart and move more randomly than in a liquid. Examples of gases include air, water …

Jan 28, 2020 · Some materials are gases only at high temperatures, while others are gases at low temperatures or room temperature. Meanwhile, some materials are only gases at high …

Feb 11, 2025 · Lecture 3: Real Gases Last time, we have introduced the ideal gas law, P V = n R T (left figure) Today, we will discuss real gases When coupling of molecules is included, …