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sci.ideal-gas-law Calculator
Calculates any one of P, V, n, or T from the ideal gas law PV = nRT, given the other three. R = 8.314 J/(mol·K) — for real gases at high pressure or low temperature, van der Waals corrections account for intermolecular attractions and molecular volume.
Inputs
Pressure Atm
Force per unit area (Pa). Atmospheric pressure at sea level: 101,325 Pa. Check whether gauge or absolute pressure is required.
Volume L
Three-dimensional space occupied (m³ or L). 1 m³ = 1,000 L.
Moles
Reference formula or conversion factor shown for context.
Temperature K
Thermal state of the substance. Check whether the formula needs Celsius, Fahrenheit, or Kelvin (K = °C + 273.15).
Results
PV = nRT check
A pass/fail verification against the applicable code, standard, or threshold.
calculated P (atm)
The value at the specified point or condition.
calculated V (L)
The value at the specified point or condition.
calculated T (K)
The value at the specified point or condition.
R = 0.08206 L·atm/mol·K
The value at the specified point or condition.
STP
Reference formula or conversion factor shown for context.