Density of Oxygen Gas in kg/m³

Oxygen Density Formula:

\[ \rho = \frac{P \times M}{R \times T} \]

Pressure (P):

Temperature (T):

Molar Mass (M):

kg/mol

Gas Constant (R):

J/(mol·K)

Oxygen Density (ρ): kg/m³

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1. What is Oxygen Gas Density?

Definition: This calculator computes the density of oxygen gas (O₂) using the ideal gas law, given pressure, temperature, molar mass, and the universal gas constant.

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

2. How Does the Calculator Work?

The calculator uses the formula:

\[ \rho = \frac{P \times M}{R \times T} \]

Where:

\( \rho \) — Density of oxygen gas (kg/m³)
\( P \) — Pressure (Pascals)
\( M \) — Molar mass of O₂ (0.032 kg/mol)
\( R \) — Universal gas constant (8.314 J/(mol·K))
\( T \) — Temperature (Kelvin)

Explanation: The formula comes from the ideal gas law rearranged to solve for density.

3. Importance of Oxygen Density Calculation

Details: Knowing oxygen density is crucial for chemical engineering, medical applications, combustion analysis, and various industrial processes.

4. Using the Calculator

Tips: Default values represent standard temperature and pressure (STP: 101325 Pa, 273.15 K). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is the density of oxygen at STP?
A: Approximately 1.429 kg/m³ at standard temperature (273.15 K) and pressure (101325 Pa).

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

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

Q4: Why is the molar mass fixed at 0.032 kg/mol?
A: This is the molar mass of O₂ molecules (32 g/mol converted to kg).

Q5: Can I use this for other gases?
A: Yes, but you must change the molar mass value to match the gas you're analyzing.