1. Home
  2. Education
  3. Chemistry

Ideal Gas Definition

Definition of Ideal Gas

By , About.com Guide

Ideal Gas Definition: An ideal gas is a gas whose pressure P, volume V, and temperature T are related by the ideal gas law

PV = nRT,

where n is the number of moles of the gas and R is the ideal gas constant. Ideal gases are defined as having molecules with negligible size with an average molar kinetic energy dependent only on temperature. At low temperature, most gases behave enough like ideal gases that the ideal gas law can be applied to them.

Also Known As: perfect gas

Return to the Chemistry Glossary Index

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Explore Chemistry

About.com Special Features

A Smarter Future

Tips that will help finance your education, excel in the classroom, and advance your career. More >

How to Ace the GRE

Being well prepared is the first step; here are more essential suggestions. More >

  1. Home
  2. Education
  3. Chemistry
  4. Facts & Pictures
  5. Dictionaries & Glossaries
  6. Chemistry Glossary
  7. Ideal Gas Definition - Definition of Ideal Gas>

©2009 About.com, a part of The New York Times Company.

All rights reserved.