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sci.gas-mixture-Dalton-properties Calculator
Calculates partial pressures, mole fractions, and properties (MW, Cp) of a gas mixture using Dalton's law and ideal mixing rules. Natural gas (85% CH₄, 10% C₂H₆, 5% N₂): MW_mix = 18.5 g/mol — LHV of the mixture is the mole-fraction-weighted average of component heating values.
Inputs
X N2 Pct
Reference formula or conversion factor shown for context.
X O2 Pct
Reference formula or conversion factor shown for context.
X Ar Pct
Reference formula or conversion factor shown for context.
P Total Kpa
Force per unit area (Pa). Atmospheric pressure at sea level: 101,325 Pa. Check whether gauge or absolute pressure is required.
T K
Thermal state of the substance. Check whether the formula needs Celsius, Fahrenheit, or Kelvin (K = °C + 273.15).
Results
mixture molar mass M (g/mol)
The computed mass of the object or substance.
density ρ (kg/m³)
Sample size or count used in the calculation.
partial pressure O₂ (kPa)
Reference formula or conversion factor shown for context.
partial pressure N₂ (kPa)
Sample size or count used in the calculation.
specific heat capacity Cp (J/kg·K)
The value at the specified point or condition.
Dalton (1801): P_total = ΣP_i | M_mix = Σx_i·M_i
The combined total across all inputs and components.