Parachor Given Critical Volume Calculator

Parachor Formula:

\[ Ps = 0.78 \times V_{cr} \]

Parachor (m³/(J/m²)^0.25):

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1. What is Parachor Given Critical Volume?

Definition: This calculator estimates the parachor value based on the critical volume of a substance.

Purpose: It helps in determining surface tension related properties of substances using their critical volume.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ Ps = 0.78 \times V_{cr} \]

Where:

\( Ps \) — Parachor (m³/(J/m²)^0.25)
\( V_{cr} \) — Critical Volume (m³)

Explanation: The critical volume is multiplied by a constant factor of 0.78 to obtain the parachor value.

3. Importance of Parachor Calculation

Details: Parachor is important in surface chemistry for predicting surface tension and other interfacial properties.

4. Using the Calculator

Tips: Enter the critical volume in cubic meters (m³). The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is parachor?
A: Parachor is a quantity related to surface tension that correlates molecular structure with surface properties.

Q2: What is critical volume?
A: Critical volume is the volume occupied by unit mass of a substance at its critical temperature and pressure.

Q3: Why is the constant 0.78 used?
A: This empirical constant relates critical volume to parachor based on experimental observations.

Q4: What are typical values for critical volume?
A: Critical volumes vary widely but are often in the range of 10^-5 to 10^-3 m³/mol for common substances.

Q5: What units does this calculator use?
A: The calculator uses SI units - cubic meters for volume and m³/(J/m²)^0.25 for parachor.