1. What is Surface Tension of Methane+Hexane System?

Definition: Surface Tension of Methane+Hexane System is the energy, or work, required to increase the surface area of a system (Methane+Hexane) due to intermolecular forces.

Purpose: This calculator helps determine the surface tension of a methane-hexane mixture based on hexane concentration.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( \gamma \) — Surface tension (N/m)
• \( X_{hexane} \) — Concentration of hexane (mol/m³)

Explanation: The formula calculates the surface tension by adding a base value (0.64 N/m) to the product of hexane concentration and a coefficient (17.85).

3. Importance of Surface Tension Calculation

Details: Surface tension affects fluid behavior, interfacial phenomena, and is important in chemical engineering applications involving gas-liquid systems.

4. Using the Calculator

Tips: Enter the concentration of hexane in mol/m³. The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is the physical significance of the 0.64 constant?
A: This represents the surface tension of pure methane (in N/m) at standard conditions.

Q2: Why is the coefficient 17.85 used for hexane?
A: This empirical coefficient accounts for how hexane concentration affects the mixture's surface tension.

Q3: What are typical hexane concentrations in industrial applications?
A: Concentrations vary widely but often range from 0.1 to 20 mol/m³ depending on the process.

Q4: Does temperature affect this calculation?
A: Yes, but this formula assumes standard temperature conditions (around 25°C).

Q5: How accurate is this formula?
A: It provides reasonable estimates for many applications, but for precise work, experimental measurements are recommended.