Parachor Given Molar Volume Calculator

Parachor Formula:

\[ P_s = (\gamma)^{1/4} \times V_m \]

Parachor (m³/mol·(J/m²)^0.25):

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1. What is Parachor Given Molar Volume?

Definition: Parachor is a quantity related to surface tension that combines surface tension and molar volume.

Purpose: It helps in understanding and predicting the surface tension of liquids based on their molecular structure.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ P_s = (\gamma)^{1/4} \times V_m \]

Where:

\( P_s \) — Parachor (m³/mol·(J/m²)^0.25)
\( \gamma \) — Surface Tension of Fluid (N/m)
\( V_m \) — Molar Volume (m³/mol)

Explanation: The surface tension is raised to the 1/4 power and multiplied by the molar volume to obtain the parachor value.

3. Importance of Parachor Calculation

Details: Parachor values are used in physical chemistry to correlate surface tension with molecular structure and to predict surface tension of liquids.

4. Using the Calculator

Tips: Enter the surface tension in N/m and molar volume in m³/mol. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What are typical surface tension values for common liquids?
A: Water at 20°C has 72.8 mN/m, ethanol 22.3 mN/m, and mercury 486.5 mN/m.

Q2: How do I find molar volume?
A: Molar volume can be calculated by dividing the molar mass by the density of the substance.

Q3: What units does parachor use?
A: Parachor has units of m³/mol·(J/m²)^0.25 or equivalent.

Q4: Can parachor be used for mixtures?
A: Yes, parachor values can be additive for mixtures, allowing estimation of surface tension.

Q5: What's the physical significance of the 1/4 power in the formula?
A: The exponent relates to the dimensional analysis connecting surface tension and molar volume.