Calcolatore Volume Molare

Calcola il volume molare di un gas a condizioni specifiche di temperatura e pressione.

Pressione (P)

atm

Molar Volume (V_m)

L/mol

Temperatura (T)

Compressibility Factor (Z)

0.8124

Compressibility Factor (Z) vs Pressure (P)

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.

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

What does Z = 1 mean?

Z = 1 means the gas behaves ideally. The actual molar volume equals the ideal molar volume predicted by PV = nRT.

What causes Z < 1?

Intermolecular attractions pull molecules closer together, reducing the volume below ideal predictions. This is common at moderate pressures.

What causes Z > 1?

At very high pressures, molecular volume and repulsive forces become significant, causing the gas to occupy more volume than predicted.

Impara

Calculate real gas corrections.

Calculate gas properties using PV=nRT.

Calculate gas density.