🎈 Gas Laws

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Solve gas law problems for pressure, volume, temperature and amount of gas. Temperatures are entered in °C and converted to kelvin for you.

Solve the ideal gas equation PV = nRT for pressure, volume, moles or temperature. Pressure in atm, volume in litres, temperature in kelvin or °C.

Use Boyle's law P₁V₁ = P₂V₂ to find the new volume or new pressure of a gas at constant temperature.

Use Charles's law V₁/T₁ = V₂/T₂ to find the new volume of a gas when its temperature changes at constant pressure. Temperatures in °C are converted to kelvin.

Combined Gas Law

Use the combined gas law P₁V₁/T₁ = P₂V₂/T₂ to find the new volume of a gas when both pressure and temperature change. Temperatures in °C are converted to kelvin.