1. What is the Ideal Gas Law?

The Ideal Gas Law (PV = nRT) describes the relationship between pressure, volume, temperature, and number of moles of an ideal gas. This calculator specifically calculates volume from pressure in psi, converting to the SI unit pascals (Pa) for computation.

2. How Does the Calculator Work?

The calculator uses the Ideal Gas Law equation:

Where:

• \( V \) — Volume (m³)
• \( n \) — Number of moles (mol)
• \( R \) — Gas constant (8.314 J/mol·K)
• \( T \) — Temperature (K)
• \( P \) — Pressure (Pa) - converted from psi input

Conversion: Pressure input in psi is converted to pascals using: 1 psi = 6894.76 Pa

3. Importance of Volume Calculation

Details: Accurate volume calculation is essential in various scientific and engineering applications, including chemical reactions, gas storage design, and thermodynamic studies.

4. Using the Calculator

Tips: Enter number of moles in mol, temperature in Kelvin, and pressure in psi. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why convert psi to pascals?
A: The gas constant R is defined in SI units (J/mol·K), requiring pressure to be in pascals for consistent units.

Q2: What is an ideal gas?
A: An ideal gas is a theoretical gas that follows the ideal gas law exactly, with particles having no volume and no intermolecular forces.

Q3: When is the ideal gas law applicable?
A: The law works well for most gases at moderate temperatures and pressures, but becomes less accurate at high pressures or low temperatures.

Q4: How to convert Celsius to Kelvin?
A: Add 273.15 to the Celsius temperature to get Kelvin (K = °C + 273.15).

Q5: What are typical applications?
A: Chemical engineering calculations, scuba diving gas planning, industrial gas storage design, and scientific research.