Science
Mole fraction of two components
Divide each component’s amount in moles by the total amount to obtain two complementary mole fractions that sum to one.
Calculators / Science / Ideal gas pressure
Ideal gas pressure calculator
Calculate gas pressure from amount in moles, absolute temperature and volume using the ideal gas relationship; volume is entered in cubic metres.
On this page
Pressure103,289.88Pa
Pressure103.29kPa
Calculator controls
How to calculate
Calculate gas pressure from amount in moles, absolute temperature and volume using the ideal gas relationship; volume is entered in cubic metres.
Pressure = n*8.31446261815324*T/v Pa; Pressure = n*8.31446261815324*T/v/1000 kPa
Worked example
Amount of substance (mol): 1; Absolute temperature (K): 298.15; Gas volume (m³): 0.024.
Pressure: 103,289.88 Pa; Pressure: 103.29 kPa.
Assumptions and limits
Calculate gas pressure from amount in moles, absolute temperature and volume using the ideal gas relationship; volume is entered in cubic metres. Ideal-gas model using R = 8.31446261815324 J/(mol·K). Temperature is absolute kelvin and volume is cubic metres; high-density gases may deviate.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Understanding the result
Calculate gas pressure from amount in moles, absolute temperature and volume using the ideal gas relationship; volume is entered in cubic metres.
When this tool is useful
Pressure = n*8.31446261815324*T/v Pa; Pressure = n*8.31446261815324*T/v/1000 kPa
Understanding your inputs
| Input | What to enter |
|---|---|
| Amount of substance (mol) | Enter a number of at least 0 and no more than 1000000000000. |
| Absolute temperature (K) | Enter a number of at least 1e-12 and no more than 1000000000000. |
| Gas volume (m³) | Enter a number of at least 1e-12 and no more than 1000000000000. |
Frequently asked questions
What assumptions does this calculation use?
Calculate gas pressure from amount in moles, absolute temperature and volume using the ideal gas relationship; volume is entered in cubic metres. Ideal-gas model using R = 8.31446261815324 J/(mol·K). Temperature is absolute kelvin and volume is cubic metres; high-density gases may deviate.
How is the result calculated?
Pressure = n*8.31446261815324*T/v Pa; Pressure = n*8.31446261815324*T/v/1000 kPa