Elevación del punto de ebullición
ΔT_b = K_b · m · i, propiedad coligativa.
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Introducción
Boiling Point Elevation — ΔT_b = K_b · m · i colligative property. Enter Kb (°C·kg/mol), Molality (mol/kg), Van't Hoff factor (i) to get an instant, accurate result.
Fórmula
Boiling point elevation: ΔT = Kb × m × i, where Kb is the ebullioscopic constant, m is molality, and i is the van't Hoff factor.
Paso a paso
- Enter the Kb (°C·kg/mol).
- Enter the Molality (mol/kg).
- Enter the Van't Hoff factor (i).
- Click Calculate to see your result instantly.
Ejemplo del mundo real
Example: With Kb (°C·kg/mol) = 0.512, Molality (mol/kg) = 1, Van't Hoff factor (i) = 1, the Boiling Point Elevation gives Delta T: 0.512.
Preguntas Frecuentes
What is the van't Hoff factor?
The number of particles a solute dissociates into in solution (e.g. i=2 for NaCl, i=1 for a non-dissociating solute).
Why does adding solute raise the boiling point?
Dissolved particles disrupt the solvent's vapor pressure, requiring a higher temperature to reach boiling.
What inputs does the Boiling Point Elevation need?
You'll need to provide: Kb (°C·kg/mol), Molality (mol/kg), Van't Hoff factor (i). All fields use sensible defaults, so you can see a working example immediately and then adjust the values to match your own numbers.
How accurate is the Boiling Point Elevation?
The Boiling Point Elevation applies the formula exactly as calculated — Boiling point elevation: ΔT = Kb × m × i, where Kb is the ebullioscopic constant, m is molality, and i is the van't Hoff factor. — so results are precise for the inputs you provide. Accuracy depends on entering correct, realistic input values.
Is the Boiling Point Elevation free to use?
Yes, the Boiling Point Elevation is completely free, requires no signup, and runs instantly in your browser.
Acerca de Elevación del punto de ebullición
The Boiling Point Elevation uses a real, verifiable formula — Boiling point elevation: ΔT = Kb × m × i, where Kb is the ebullioscopic constant, m is molality, and i is the van't Hoff factor. — so results are accurate every time, not an approximation.