Find pressure P = n R T / V with R = 8.314 J/(mol·K).
| P (Pa) | – |
Use this calculator for the ideal-gas law in SI units. Temperature T is kelvin (25 °C is 298.15 K). Volume V is cubic metres (24 L is 0.024 m³). One mole of air at room temperature in 24 L is near 1 atm (about 1.01×10⁵ Pa). Real gases deviate at high pressure or near condensation.
n, T and V must be greater than zero. Do not enter Celsius; convert first by adding 273.15.
n (mol): Amount of gas in moles.
T (K): Absolute temperature, kelvin.
V (m³): Volume in cubic metres.
P (Pa): Pressure in pascals.
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