About the Ideal Gas Law (PV = nRT)
The Ideal Gas Law is a fundamental equation in chemistry and physics that describes the behavior of ideal gases. It combines several gas laws—Boyle’s, Charles’s, and Avogadro’s laws—into one formula:
PV = nRT
- P = Pressure (in atmospheres, atm)
- V = Volume (in liters, L)
- n = Number of moles (mol)
- R = Ideal Gas Constant = 0.0821 L·atm/mol·K
- T = Temperature (in Kelvin, K)
This calculator lets you solve for any one variable (P, V, n, or T) by inputting the other three values. It is especially useful for:
- Solving gas law problems in chemistry or physics classes
- Quickly checking homework or experiment results
- Understanding the relationship between gas properties
Note: Ensure temperature is in Kelvin. To convert from Celsius: K = °C + 273.15.