Boiling Point Elevation Solution

STEP 0: Pre-Calculation Summary
Formula Used
Boiling Point Elevation = Molal Boiling Point Elevation Constant*Molality
ΔTb = Kb*m
This formula uses 3 Variables
Variables Used
Boiling Point Elevation - (Measured in Celsius) - Boiling point elevation refers to the increase in the boiling point of a solvent upon the addition of a solute.
Molal Boiling Point Elevation Constant - Molal Boiling Point Elevation Constant is the constant of elevation in boiling point of solute and has a specific value depending on the identity of the solvent.
Molality - (Measured in Mole per Kilogram) - Molality is defined as the total number of moles of solute per kilograms of solvent present in the solution.
STEP 1: Convert Input(s) to Base Unit
Molal Boiling Point Elevation Constant: 0.51 --> No Conversion Required
Molality: 1.79 Mole per Kilogram --> 1.79 Mole per Kilogram No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
ΔTb = Kb*m --> 0.51*1.79
Evaluating ... ...
ΔTb = 0.9129
STEP 3: Convert Result to Output's Unit
274.0629 Kelvin --> No Conversion Required
FINAL ANSWER
274.0629 Kelvin <-- Boiling Point Elevation
(Calculation completed in 00.004 seconds)

Credits

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Created by Keshav Vyas
Sardar Vallabhbhai National Institute of Technology (SVNIT), Surat
Keshav Vyas has created this Calculator and 7 more calculators!
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Verified by Dipto Mandal
Indian Institute of Information Technology (IIIT), Guwahati
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Elevation in Boiling Point Calculators

Ebullioscopic Constant using Molar Enthalpy of Vaporization
​ LaTeX ​ Go Ebullioscopic Constant of Solvent = ([R]*Solvent Boiling Point*Solvent Boiling Point*Molar Mass of Solvent)/(1000*Molar Enthalpy of Vaporization)
Ebullioscopic Constant using Latent Heat of Vaporization
​ LaTeX ​ Go Ebullioscopic Constant of Solvent = ([R]*Solvent BP given Latent Heat of Vaporization^2)/(1000*Latent Heat of Vaporization)
Ebullioscopic Constant given Elevation in Boiling Point
​ LaTeX ​ Go Ebullioscopic Constant of Solvent = Boiling Point Elevation/(Van't Hoff Factor*Molality)
Elevation in Boiling Point of Solvent
​ LaTeX ​ Go Boiling Point Elevation = Ebullioscopic Constant of Solvent*Molality

Important Formulas of Colligative Properties Calculators

Osmotic Pressure given Depression in Freezing Point
​ LaTeX ​ Go Osmotic Pressure = (Molar Enthalpy of Fusion*Depression in Freezing Point*Temperature)/(Molar Volume*(Solvent Freezing Point^2))
Osmotic Pressure given Concentration of Two Substances
​ LaTeX ​ Go Osmotic Pressure = (Concentration of Particle 1+Concentration of Particle 2)*[R]*Temperature
Osmotic Pressure for Non Electrolyte
​ LaTeX ​ Go Osmotic Pressure = Molar Concentration of Solute*[R]*Temperature
Osmotic Pressure given Density of Solution
​ LaTeX ​ Go Osmotic Pressure = Density of Solution*[g]*Equilibrium Height

Boiling Point Elevation Formula

​LaTeX ​Go
Boiling Point Elevation = Molal Boiling Point Elevation Constant*Molality
ΔTb = Kb*m

Why Does Boiling Point Elevation Occur?

The boiling point of a liquid is the temperature at which its vapour pressure is equal to the pressure of its surrounding environment. Non-volatile substances do not readily undergo evaporation and have very low vapour pressures (assumed to be zero). When a non-volatile solute is added to a solvent, the vapour pressure of the resulting solution is lower than that of the pure solvent.

Therefore, a greater amount of heat must be supplied to the solution for it to boil. This increase in the boiling point of the solution is the boiling point elevation. An increase in the concentration of added solute is accompanied by a further decrease in the vapour pressure of the solution and further elevation in the boiling point of the solution

How to Calculate Boiling Point Elevation?

Boiling Point Elevation calculator uses Boiling Point Elevation = Molal Boiling Point Elevation Constant*Molality to calculate the Boiling Point Elevation, Boiling point Elevation is defined as the increase in the boiling point of a solvent upon the addition of a solute. When a non-volatile solute is added to a solvent, the resulting solution has a higher boiling point than that of the pure solvent. Boiling Point Elevation is denoted by ΔTb symbol.

How to calculate Boiling Point Elevation using this online calculator? To use this online calculator for Boiling Point Elevation, enter Molal Boiling Point Elevation Constant (Kb) & Molality (m) and hit the calculate button. Here is how the Boiling Point Elevation calculation can be explained with given input values -> 274.0629 = 0.51*1.79.

FAQ

What is Boiling Point Elevation?
Boiling point Elevation is defined as the increase in the boiling point of a solvent upon the addition of a solute. When a non-volatile solute is added to a solvent, the resulting solution has a higher boiling point than that of the pure solvent and is represented as ΔTb = Kb*m or Boiling Point Elevation = Molal Boiling Point Elevation Constant*Molality. Molal Boiling Point Elevation Constant is the constant of elevation in boiling point of solute and has a specific value depending on the identity of the solvent & Molality is defined as the total number of moles of solute per kilograms of solvent present in the solution.
How to calculate Boiling Point Elevation?
Boiling point Elevation is defined as the increase in the boiling point of a solvent upon the addition of a solute. When a non-volatile solute is added to a solvent, the resulting solution has a higher boiling point than that of the pure solvent is calculated using Boiling Point Elevation = Molal Boiling Point Elevation Constant*Molality. To calculate Boiling Point Elevation, you need Molal Boiling Point Elevation Constant (Kb) & Molality (m). With our tool, you need to enter the respective value for Molal Boiling Point Elevation Constant & Molality and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Boiling Point Elevation?
In this formula, Boiling Point Elevation uses Molal Boiling Point Elevation Constant & Molality. We can use 3 other way(s) to calculate the same, which is/are as follows -
  • Boiling Point Elevation = Ebullioscopic Constant of Solvent*Molality
  • Boiling Point Elevation = Van't Hoff Factor*Ebullioscopic Constant of Solvent*Molality
  • Boiling Point Elevation = ((Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)*[R]*(Solvent Boiling Point^2))/(Molar Enthalpy of Vaporization*Vapour Pressure of Pure Solvent)
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