1. What is the Ideal Gas Law Equation?

The Ideal Gas Law (P = nRT/V) describes the relationship between pressure (P), volume (V), number of moles (n), and temperature (T) for an ideal gas. It's a fundamental equation in chemistry and physics for gas behavior calculations.

2. How Does the Calculator Work?

The calculator uses the Ideal Gas Law equation:

Where:

• \( P \) — Pressure (atm)
• \( n \) — Number of moles (mol)
• \( R \) — Gas constant (0.0821 L·atm·mol⁻¹·K⁻¹)
• \( T \) — Temperature (K)
• \( V \) — Volume (L)

Explanation: The calculator automatically converts input volume from mL to L and applies the ideal gas law to calculate pressure in atmospheres.

3. Importance of Pressure Calculation

Details: Accurate pressure calculation is crucial for various scientific and engineering applications, including chemical reactions, gas storage, atmospheric studies, and industrial processes involving gases.

4. Using the Calculator

Tips: Enter number of moles in mol, temperature in Kelvin, and volume in mL. All values must be positive numbers. The calculator automatically handles the mL to L conversion.

5. Frequently Asked Questions (FAQ)

Q1: Why convert mL to L in the calculation?
A: The gas constant R is defined in L·atm·mol⁻¹·K⁻¹, so volume must be in liters for dimensional consistency.

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 not accurate?
A: At high pressures, low temperatures, or for gases with strong intermolecular forces, real gases deviate from ideal behavior.

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

Q5: Can this calculator handle different units?
A: This calculator is specifically designed for mL volume input with atm pressure output. For other units, appropriate conversions are needed.