1. What is Nitrogen Gas Density?

Nitrogen gas density refers to the mass of nitrogen gas per unit volume, typically expressed in kg/m³. It's an important property in various scientific and industrial applications.

2. How Does the Calculator Work?

The calculator uses the ideal gas law equation:

Where:

• \( D \) — Density (kg/m³)
• \( P \) — Pressure (Pa)
• \( MW \) — Molecular weight of nitrogen (28.0134 g/mol)
• \( R \) — Universal gas constant (8.314 J/mol·K)
• \( T \) — Temperature (K)

Explanation: The equation calculates the density of nitrogen gas based on its pressure and temperature, assuming ideal gas behavior.

3. Importance of Nitrogen Gas Density

Details: Knowing nitrogen gas density is crucial for applications in chemical engineering, atmospheric sciences, industrial gas handling, and various laboratory procedures.

4. Using the Calculator

Tips: Enter pressure in Pascals (Pa) and temperature in Kelvin (K). Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why use Kelvin for temperature?
A: Kelvin is the absolute temperature scale required by the ideal gas law, where 0 K is absolute zero.

Q2: What is the molecular weight of nitrogen?
A: The molecular weight of N₂ is approximately 28.0134 g/mol, as nitrogen is a diatomic molecule (N≡N).

Q3: How accurate is this calculation?
A: This uses the ideal gas law which is accurate for nitrogen at standard temperature and pressure. For high pressures or low temperatures, real gas corrections may be needed.

Q4: What is the density of nitrogen at STP?
A: At standard temperature (273.15 K) and pressure (101325 Pa), nitrogen gas has a density of approximately 1.2506 kg/m³.

Q5: Can this calculator be used for other gases?
A: No, this is specific to nitrogen. For other gases, you would need to use their respective molecular weights.