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 provides a good approximation of the behavior of many gases under many conditions.

2. How Does the Calculator Work?

The calculator uses the Ideal Gas Law equation:

Where:

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

Explanation: The equation shows that volume is directly proportional to the number of moles and temperature, and inversely proportional to pressure.

3. Importance of Ideal Gas Law

Details: The Ideal Gas Law is fundamental in chemistry and physics for predicting the behavior of gases, designing chemical processes, and understanding atmospheric phenomena.

4. Using the Calculator

Tips: Enter the number of moles, temperature in Kelvin, and pressure in atmospheres. 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 composed of point particles that interact only through elastic collisions and have no intermolecular forces.

Q2: When does the ideal gas law not apply?
A: At high pressures, low temperatures, or for polar molecules where intermolecular forces become significant.

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

Q4: What are common values for R?
A: 0.0821 L·atm/mol·K (this calculator), 8.314 J/mol·K, or 62.36 L·torr/mol·K depending on units needed.

Q5: Can I calculate other variables with this equation?
A: Yes, the equation can be rearranged to solve for any variable (P, V, n, or T) if the others are known.