The Ideal Gas Law


The ideal gas law is the equation of state of a hypothetical ideal gas. It is a good approximation to the behavior of many gases under many conditions. [Wikipedia]

The Ideal Gas Law defines the relationship between pressure, temperature, and volume of an ideal gas. It is usually written

PV = nRT, where

P is pressure (Pa),
V is volume (m³),
n is the number of moles of the gas,
R is a constant specific to the gas (8.314 J/(K·mol)), and
T is the temperature of the gas (K)

The Ideal Gas Law is useful for calculating the pressure, volume, and temperature of air in the operating engine.

Graph of Pressure vs Temperature (Constant Volume)

Copyright © 2011 Morris R Dovey

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