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Partial Pressure Calculator
Calculate partial pressure using Dalton's Law
Formula: Pi = Xi × Ptotal | Pi = (ni × R × T) / V
Where Xi is the mole fraction, Ptotal is total pressure, and ni is moles of gas.
Where Xi is the mole fraction, Ptotal is total pressure, and ni is moles of gas.
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⚠️ Dalton's Law of Partial Pressures assumes ideal gas behavior where gas molecules do not interact with one another. Under high pressures or low temperatures, intermolecular forces cause deviations, making real gas partial pressures slightly lower than ideal predictions.