1. What is the Ideal Gas Law?

The Ideal Gas Law relates the pressure, volume, temperature, and number of moles of an ideal gas through the equation PV = nRT. It's a fundamental equation in chemistry and physics for understanding gas behavior under various conditions.

2. How Does the Calculator Work?

The calculator uses the Ideal Gas Law equation:

Where:

• \( P \) — Pressure (atm)
• \( V \) — Volume (L)
• \( n \) — Number of moles (mol)
• \( R \) — Gas constant (0.0821 L·atm/mol·K)
• \( T \) — Temperature (K)

Explanation: The equation calculates the amount of gas (in moles) given its pressure, volume, and temperature, assuming ideal gas behavior.

3. Importance of the Ideal Gas Law

Details: The Ideal Gas Law is essential for predicting the behavior of gases in chemical reactions, industrial processes, and various scientific applications. It helps in determining stoichiometric relationships in gas-phase reactions.

4. Using the Calculator

Tips: Enter pressure in atmospheres (atm), volume in liters (L), and temperature in Kelvin (K). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is an ideal gas?
A: An ideal gas is a theoretical gas that perfectly follows the Ideal Gas Law, with particles that have no volume and no intermolecular forces.

Q2: When does the Ideal Gas Law not apply?
A: The law becomes less accurate at high pressures or low temperatures where real gases deviate from ideal behavior due to molecular volume and intermolecular forces.

Q3: How do I convert Celsius to Kelvin?
A: Add 273.15 to the Celsius temperature to get Kelvin (K = °C + 273.15).

Q4: What are common values for R?
A: The value depends on units. Common values include 0.0821 L·atm/mol·K (used here), 8.314 J/mol·K, and 62.364 L·Torr/mol·K.

Q5: Can I use this for mixtures of gases?
A: Yes, the law applies to gas mixtures, where n represents the total moles of all gas components.