# Charles's Law

**Formula:**`V1/T1 = V2/T2`

## Understanding Charles's Law

Charles's Law is an experimental gas law that describes how gases tend to expand when heated. In this formula, ** V1** represents the initial volume of the gas,

**is the final volume of the gas,**

*V2***is the initial absolute temperature of the gas (in Kelvin), and**

*T1***is the final absolute temperature of the gas (in Kelvin). The law states that the volume of a given amount of gas held at a constant pressure is directly proportional to the Kelvin temperature.**

*T2*## Parameter usage:

`initialVolume`

= The initial volume of the gas.`finalTemperature`

= The final temperature of the gas in Kelvin.`initialTemperature`

= The initial temperature of the gas in Kelvin.

## Example valid values:

`initialVolume`

= 1L`finalTemperature`

= 500K`initialTemperature`

= 250K

## Output:

`finalVolume`

= The calculated final volume of the gas based on Charles's Law.

## Data validation

Before calculating the final volume, ensure that all values provided are greater than zero and that temperatures are expressed in Kelvin.

## Practical Applications

This law helps to understand behaviors of gases under varying temperature conditions, which is essential for thermodynamics studies, HVAC systems, calculating the expansion of hot air balloons, and many more applications.

Tags: Thermodynamics, Charles S Law, Gas Law, Volume, Temperature