Calculate properties of ideal gases using the equation PV = nRT.
Pressure
0.999998 atm
Formula Used
P = (nRT) / V
Calculation Step (using standard units)
P = (1 × 0.0821 × 273.15) / 22.4140
* R = 0.082057 L·atm·K⁻¹·mol⁻¹ used for internal calculation
The Ideal Gas Law is approximately accurate for gases at moderate pressures and temperatures. It combines Boyle's Law, Charles's Law, Avogadro's Law, and Gay-Lussac's Law.
PV = nRTWhere:
Calculation involving gas laws MUST use an absolute temperature scale. If you have Celsius, add 273.15 to get Kelvin. If you have Fahrenheit, convert to Celsius first, then to Kelvin.
Standard conditions often used in chemistry are 0°C (273.15 K) and 1 atm pressure. At STP, 1 mole of an ideal gas occupies 22.414 Liters.