Calcolatore Volume Molare — Formula

## Compressibility Factor

### Formula

**Z = PV_m / (RT)**

Where:
- **Z** = compressibility factor (dimensionless)
- **P** = pressure (atm)
- **V_m** = molar volume (L/mol)
- **R** = 0.08206 L·atm/(mol·K)
- **T** = temperature (K)

For an ideal gas, Z = 1. Z < 1 means attractive forces dominate; Z > 1 means repulsive forces dominate.

Esempio Risolto

A gas at 100 atm, 300 K, has a molar volume of 0.2 L/mol.

  1. Z = PV_m / (RT)
  2. Z = (100 × 0.2) / (0.08206 × 300)
  3. Z = 20 / 24.618
  4. Z = 0.8124