1. What is CO2 Gas Density Calculator?

Definition: This calculator estimates the density of carbon dioxide gas based on pressure, temperature, and molar mass using the ideal gas law.

Purpose: It helps scientists, engineers, and students determine the density of CO2 under various conditions.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( \rho \) — Density of CO2 (kg/m³)
• \( P \) — Pressure (Pascals)
• \( M \) — Molar mass of CO2 (0.044 kg/mol)
• \( R \) — Universal gas constant (8.314 J/(mol·K))
• \( T \) — Temperature (Kelvin)

Explanation: The formula is derived from the ideal gas law, relating gas density to its pressure and temperature.

3. Importance of CO2 Density Calculation

Details: Knowing CO2 density is crucial for carbon capture systems, beverage carbonation, fire suppression systems, and climate studies.

4. Using the Calculator

Tips:

• Standard conditions: 101325 Pa (1 atm) and 273.15 K (0°C) give ~1.98 kg/m³
• Room temperature (298.15 K): ~1.81 kg/m³ at 1 atm
• All values must be > 0

5. Frequently Asked Questions (FAQ)

Q1: What's the density of CO2 at STP?
A: Approximately 1.98 kg/m³ at standard temperature (273.15 K) and pressure (101325 Pa).

Q2: How does temperature affect CO2 density?
A: Density decreases as temperature increases (inverse relationship).

Q3: How does pressure affect CO2 density?
A: Density increases linearly with increasing pressure.

Q4: Why is molar mass fixed at 0.044 kg/mol?
A: This is CO2's molecular weight (12 + 16×2 = 44 g/mol = 0.044 kg/mol).

Q5: When does this calculation become inaccurate?
A: At very high pressures or near the critical point (304.13 K, 7.377 MPa), real gas behavior deviates from ideal.