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Ideal Gas Law Calculator

Use this calculator to determine one missing property of a gas - pressure, volume, temperature, or moles - using the Ideal Gas Law equation PV = nRT.

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What this calculator is doing

The Ideal Gas Law relates the pressure, volume, temperature, and amount of an ideal gas:

\[ P \cdot V = n \cdot R \cdot T \]

Where:
\( P \) = Pressure (Pa)
\( V \) = Volume (m³)
\( n \) = Amount of substance (mol)
\( R \) = Universal gas constant (8.314462618 J/(mol·K))
\( T \) = Absolute temperature (K)

Given three of these quantities, the fourth can be calculated. This equation assumes ideal gas behavior, which is a good approximation at low pressures and high temperatures.

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