Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

This is an AMP page - Open full page! for all features.

• the most efficient way to navigate the Engineering ToolBox!

# Charles' Law

Charles' law states that in a perfect gas where the mass and pressure is kept constant, the volume vary directly with the absolute temperature.

Charles' Law can be expressed as

V / T = constant                                          (1)

or

V 1 / T 1 = V 2 / T 2 (1b)

where

V = volume (m 3 , ft 3 ...)

T = absolute temperature (K, R)

### Example - Charles' Law

A gas occupies a volume of 2 liter at 0 o C . The volume it occupies at 100 o C can be calculated as

V 2 =  T 2 V 1 / T 1

= (373 K)  (2 liters) / (273 K)

= 2.73 (liters )

## Related Topics

### • Gases and Compressed Air

Air, LNG, LPG and other common gas properties, pipeline capacities, sizing of relief valves.

## Related Documents

### Air - Volume vs. Temperature

Air volume vs. temperature correction factor compared to Normal Air Conditions.

### Boyle's Law (Mariotte's Law)

The volume of an ideal gas vs. pressure.

### Non-ideal gas - Van der Waal's Equation and Constants

The van der Waals constants for more than 200 gases used to correct for non-ideal behavior of gases caused by intermolecular forces and the volume occupied by the gas particles.

### The Ideal Gas Law

The relationship between volume, pressure, temperature and quantity of a gas, including definition of gas density.

### Total and Partial Pressure - Dalton's Law of Partial Pressures

How to calculate total pressure and partial pressures for gas mixtures from Ideal Gas Law.

## Search Engineering ToolBox

• the most efficient way to navigate the Engineering ToolBox!

## SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with the amazing, fun and free SketchUp Make and SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp from the Sketchup Extension Warehouse!