Boiling point of Solvent given Ebullioscopic Constant and Molar Enthalpy of Vaporization Calculator

Solvent Boiling Point Formula:

\[ T_{bp} = \sqrt{\frac{k_b \times 1000 \times \Delta H_{vap}}{R \times M_{solvent}}} \]

Ebullioscopic Constant of Solvent:

K·kg/mol

Molar Enthalpy of Vaporization:

J/mol

Molar Mass of Solvent:

g/mol

Solvent Boiling Point (K):

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is Solvent Boiling Point Calculator?

Definition: This calculator determines the boiling point of a solvent based on its ebullioscopic constant, molar enthalpy of vaporization, and molar mass.

Purpose: It helps chemists and researchers predict solvent boiling points for various applications in chemical synthesis and industrial processes.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ T_{bp} = \sqrt{\frac{k_b \times 1000 \times \Delta H_{vap}}{R \times M_{solvent}}} \]

Where:

\( T_{bp} \) — Solvent boiling point (Kelvin)
\( k_b \) — Ebullioscopic constant (K·kg/mol)
\( \Delta H_{vap} \) — Molar enthalpy of vaporization (J/mol)
\( R \) — Universal gas constant (8.314 J/mol·K)
\( M_{solvent} \) — Molar mass of solvent (g/mol)

Explanation: The formula relates the boiling point elevation properties (ebullioscopic constant) to the fundamental thermodynamic properties of the solvent.

3. Importance of Boiling Point Calculation

Details: Accurate boiling point prediction is crucial for designing chemical processes, purification methods, and safety protocols in laboratory and industrial settings.

4. Using the Calculator

Tips: Enter the ebullioscopic constant (default 0.512 K·kg/mol for water), molar enthalpy of vaporization (default 40700 J/mol for water), and molar mass (default 400 g/mol). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is the ebullioscopic constant?
A: It's a constant that relates molality to boiling point elevation for a particular solvent.

Q2: How do I find molar enthalpy of vaporization?
A: It can be found in chemical reference tables or determined experimentally using calorimetry.

Q3: Why is molar mass in g/mol but the formula uses kg?
A: The 1000 factor in the formula converts g to kg for consistent units.

Q4: Can this be used for any solvent?
A: Yes, as long as you have the correct constants for your specific solvent.

Q5: How accurate is this calculation?
A: It provides a theoretical value; actual boiling points may vary slightly due to impurities and atmospheric conditions.