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Title: Fundamentals Of The Basic Gas Laws
Author: Robert Bennett
Source: 2005 Western Gas Measurement Short Course
Year Published: 2005
Abstract: Science interprets nature in terms of matter and energy. Energy is defined as the capacity to do work. There are many types of energy such as heat energy, electrical energy, kinetic energy (energy of motion), and potential energy (intrinsic energy of an object due to the position of the object). Matter is the material of which the universe is composed and is defined as anything that occupies space and has mass. There are three normal states of matter - solid, liquid, and gas. Under certain conditions, most substances can be made to exist in any of the three states, i.e. water as steam, liquid, or ice. Solid matter is rigid, generally crystalline, and will exhibit a definite shape. Liquids will flow, assume the shape of the container they are stored, and considered to maintain a constant volume and density. Gaseous matter is much more difficult to qualify since it consists of widely separated molecules in rapid motion. The comparatively large distances between the molecules make it possible for one gas to accommodate molecules of another gas or be compressed to force the individual molecules closer together. Since the molecules are in constant motion, they will expand to fill any container and strike the walls of the vessel. These myriad impacts result in a pressure.

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