1. What is Molar Volume of a Gas?

The molar volume (V_m) of a gas is the volume occupied by one mole of the gas at a given temperature and pressure. At standard temperature and pressure (STP, 0°C and 1 atm), the molar volume of an ideal gas is 22.414 L/mol.

2. How Does the Calculator Work?

The calculator uses the molar volume formula:

Where:

• \( V_m \) — Molar volume (L/mol)
• \( V \) — Volume of gas (L)
• \( n \) — Amount of substance (mol)

Explanation: The formula calculates the volume occupied per mole of gas under the experimental conditions.

3. Importance of Molar Volume

Details: Molar volume is crucial for understanding gas behavior, stoichiometric calculations, and verifying the ideal gas law in laboratory experiments.

4. Using the Calculator

Tips: Enter the measured volume of gas in liters and the amount of substance in moles. Ensure measurements are taken at consistent temperature and pressure.

5. Frequently Asked Questions (FAQ)

Q1: What is the molar volume at STP?
A: At standard temperature and pressure (0°C, 1 atm), the molar volume of an ideal gas is 22.414 L/mol.

Q2: How does temperature affect molar volume?
A: According to Charles's Law, molar volume increases with temperature (at constant pressure).

Q3: How does pressure affect molar volume?
A: According to Boyle's Law, molar volume decreases with increasing pressure (at constant temperature).

Q4: Why might experimental values differ from theoretical?
A: Real gases deviate from ideal behavior at high pressures and low temperatures due to intermolecular forces.

Q5: How can molar volume be used in stoichiometry?
A: It allows conversion between volumes of gases and moles in chemical reactions at the same temperature and pressure.