Combined Gas Law Calculator

Your details

Solved value
1
UnitL
PV/T constant (SI)0.6797J/K
Pressure ratio P₂/P₁2
Volume ratio V₂/V₁0.5
Temperature ratio T₂/T₁1
Pressure ratio P₂/P₁2
Volume ratio V₂/V₁0.5
Temperature ratio T₂/T₁1

The final volume is 1.0000 L.

  • The combined gas law P₁V₁/T₁ = P₂V₂/T₂ holds for a fixed amount of gas as it moves between two states.
  • Every entry is converted to SI (pascals, cubic metres, kelvin) before solving, so you can mix atm, kPa, bar, mmHg, psi, litres, m³, °C, °F, and K freely.
  • Across this process the pressure changes 2.00×, the volume 0.50×, and the absolute temperature 1.00×, and P×V/T stays constant.

Next stepSwitch the "Solve for" dropdown to a different variable and re-solve to verify the whole gas process is self-consistent.

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