1. What is the Ideal Gas Law?

The Ideal Gas Law (PV=nRT) describes the relationship between pressure (P), volume (V), amount of substance (n), gas constant (R), and temperature (T) for an ideal gas. It combines several simpler gas laws into one comprehensive equation.

2. How Does the Calculator Work?

The calculator uses the Ideal Gas Law equation:

Where:

• \( P \) — Pressure (Pascals)
• \( V \) — Volume (cubic meters)
• \( n \) — Amount of substance (moles)
• \( R \) — Gas constant (8.314 J/mol·K)
• \( T \) — Temperature (Kelvin)

Explanation: The equation shows how these fundamental gas properties are interrelated under ideal conditions.

3. Importance of Ideal Gas Law

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

4. Using the Calculator

Tips: Enter all required values in appropriate units. The gas constant R is pre-filled with the standard value of 8.314 J/mol·K. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What are the limitations of the ideal gas law?
A: It works best for low pressures and high temperatures. Real gases deviate from ideal behavior under high pressure or near condensation points.

Q2: Can I use different units with this calculator?
A: This calculator uses SI units. For other units, convert your values first (e.g., liters to m³, °C to K, etc.).

Q3: What is the value of R in other units?
A: Common alternatives include 0.08206 L·atm/mol·K or 62.36 L·torr/mol·K.

Q4: How accurate is this calculation for real gases?
A: For most conditions, it provides reasonable estimates. For precise work with real gases, consider the van der Waals equation.

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