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How to Calculate Boiling Point

Boiling Point Formula:

\[ T = \frac{B}{A - \log_{10}(P)} - C \]

mmHg
°C

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1. What is the Boiling Point Calculator?

Definition: This calculator estimates the boiling point of a liquid based on pressure and Antoine equation constants.

Purpose: It helps chemists, engineers, and students determine boiling points at different pressures.

2. How Does the Calculator Work?

The calculator uses the Antoine equation:

\[ T = \frac{B}{A - \log_{10}(P)} - C \]

Where:

Explanation: The equation relates vapor pressure to temperature for pure components.

3. Importance of Boiling Point Calculation

Details: Accurate boiling point estimation is crucial for distillation processes, chemical reactions, and safety considerations.

4. Using the Calculator

Tips: Enter the pressure in mmHg and Antoine constants (default values for water). Pressure must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What are typical Antoine constants?
A: For water: A=8.07131, B=1730.63, C=233.426. Each substance has unique constants.

Q2: What pressure range is valid?
A: Typically 10-1500 mmHg, but depends on the substance's constants.

Q3: Where can I find Antoine constants?
A: Chemical engineering handbooks or substance property databases.

Q4: Why mmHg for pressure?
A: The Antoine equation was originally developed using mmHg units.

Q5: Can I use this for mixtures?
A: No, this calculates boiling points for pure substances only.

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