CHEMISTRY CALCULATORS
Partial Pressure Calculator
Effortlessly calculate partial pressures of gases using this easy-to-use widget.
What is the Partial Pressure Calculator & How does it work?
Partial pressure is the pressure exerted by a gas in a mixture, assuming ideal behavior. It can be calculated using Dalton’s Law of Partial Pressures, which states that the total pressure of a gas mixture is equal to the sum of the partial pressures of each individual gas.
The formula for partial pressure is given by:This calculator allows you to input the mole fraction and total pressure to determine the partial pressure of a specific gas in the mixture.
The formula for partial pressure is given by:
P_i = X_i times P_{total}
Pi = Partial Pressure of gas i
Xi = Mole fraction of gas i
Ptotal = Total pressure of the mixture
Xi = Mole fraction of gas i
Ptotal = Total pressure of the mixture
Parameters
Partial Pressure (Pi) in atm—
Frequently Asked Questions
How do I calculate partial pressure?
Multiply the mole fraction of the gas by the total pressure of the mixture.
What is Dalton’s Law of Partial Pressures?
It states that the total pressure of a gas mixture equals the sum of the partial pressures of each individual gas.
Can this calculator handle multiple gases?
Yes, you can calculate the partial pressure for each gas in a mixture by inputting their respective mole fractions and the total pressure.
What units should I use for pressure?
You can use any consistent unit of pressure (e.g., atmospheres, pascals, millimeters of mercury) as long as you are consistent throughout your calculation.
How do I find the mole fraction of a gas?
Divide the number of moles of the gas by the total number of moles in the mixture.
Is this calculator suitable for real-world applications?
Yes, it is useful for various chemistry and engineering applications where understanding gas behavior in mixtures is important.
Can I use this calculator with non-ideal gases?
This calculator assumes ideal gas behavior. For non-ideal gases, additional corrections may be necessary.
Results are for informational purposes only and do not constitute professional advice.