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Boiling Point Elevation Calculator

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✖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.ⓘ Molal Boiling Point Elevation Constant [Kb]
+10%
-10%
✖Molality is defined as the total number of moles of solute per kilograms of solvent present in the solution.ⓘ Molality [m]
+10%
-10%
✖Boiling point elevation refers to the increase in the boiling point of a solvent upon the addition of a solute.ⓘ Boiling Point Elevation [ΔTb]
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Boiling Point Elevation

Formula
`"ΔT"_{"b"} = "K"_{"b"}*"m"`

Example
`"274.0629K"="0.51"*"1.79mol/kg"`

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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)
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Home » Chemistry » Solution and Colligative properties » Elevation in Boiling Point » Boiling Point Elevation

Credits

Created by Keshav Vyas
Sardar Vallabhbhai National Institute of Technology (SVNIT), Surat
Keshav Vyas has created this Calculator and 7 more calculators!
Verified by Dipto Mandal
Indian Institute of Information Technology (IIIT), Guwahati
Dipto Mandal has verified this Calculator and 400+ more calculators!

24 Elevation in Boiling Point Calculators

Elevation in Boiling Point given Vapour Pressure
Go 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)
Elevation in Boiling Point given Depression in Freezing Point
Go Boiling Point Elevation = (Molar Enthalpy of Fusion*Depression in Freezing Point*(Solvent Boiling Point^2))/(Molar Enthalpy of Vaporization*(Solvent Freezing Point^2))
Relative Lowering of Vapour Pressure given Elevation in Boiling Point
Go Relative Lowering of Vapour Pressure = (Molar Enthalpy of Vaporization*Boiling Point Elevation)/([R]*Solvent Boiling Point*Solvent Boiling Point)
Ebullioscopic Constant using Molar Enthalpy of Vaporization
Go Ebullioscopic Constant of Solvent = ([R]*Solvent Boiling Point*Solvent Boiling Point*Molar Mass of Solvent)/(1000*Molar Enthalpy of Vaporization)
Boiling point of Solvent given Ebullioscopic Constant and Molar Enthalpy of Vaporization
Go Solvent Boiling Point = sqrt((Ebullioscopic Constant of Solvent*1000*Molar Enthalpy of Vaporization)/([R]*Molar Mass of Solvent))
Elevation in Boiling Point given Osmotic Pressure
Go Boiling Point Elevation = (Osmotic Pressure*Molar Volume*(Solvent Boiling Point^2))/(Temperature*Molar Enthalpy of Vaporization)
Osmotic Pressure given Elevation in Boiling Point
Go Osmotic Pressure = (Molar Enthalpy of Vaporization*Boiling Point Elevation*Temperature)/((Solvent Boiling Point^2)*Molar Volume)
Solvent Boiling Point in Boiling Point Elevation
Go Solvent Boiling Point = sqrt((Molal Boiling Point Elevation Constant*Molal Heat of Vaporization*1000)/([R]*Molecular Weight))
Molar Enthalpy of Vaporization given Boiling Point of Solvent
Go Molar Enthalpy of Vaporization = ([R]*(Solvent Boiling Point^2)*Molar Mass of Solvent)/(1000*Ebullioscopic Constant of Solvent)
Molar Mass of Solvent given Ebullioscopic Constant
Go Molar Mass of Solvent = (1000*Ebullioscopic Constant of Solvent*Molar Enthalpy of Vaporization)/([R]*(Solvent Boiling Point^2))
Elevation in Boiling Point given Relative Lowering of Vapour Pressure
Go Boiling Point Elevation = (Relative Lowering of Vapour Pressure*[R]*(Solvent Boiling Point^2))/Molar Enthalpy of Vaporization
Solvent Molecular Weight in Boiling Point Elevation
Go Molecular Weight = (Molal Boiling Point Elevation Constant*Molal Heat of Vaporization*1000)/([R]*(Solvent Boiling Point^2))
Latent Heat of Vaporization given Boiling point of solvent
Go Latent Heat of Vaporization = ([R]*Solvent Boiling Point*Solvent Boiling Point)/(1000*Ebullioscopic Constant of Solvent)
Boiling point of Solvent given Ebullioscopic Constant and Latent Heat of Vaporization
Go Solvent Boiling Point = sqrt((Ebullioscopic Constant of Solvent*1000*Latent Heat of Vaporization)/[R])
Ebullioscopic Constant using Latent Heat of Vaporization
Go Ebullioscopic Constant of Solvent = ([R]*Solvent BP given Latent Heat of Vaporization^2)/(1000*Latent Heat of Vaporization)
Molal Boiling Point Elevation Constant given Ideal Gas Constant
Go Molal Boiling Point Elevation Constant = (Universal Gas Constant*(Boiling Point of Solvent)^2*Molecular Weight)/(1000)
Van't Hoff Factor of Electrolyte given Elevation in Boiling Point
Go Van't Hoff Factor = Boiling Point Elevation/(Ebullioscopic Constant of Solvent*Molality)
Ebullioscopic Constant given Elevation in Boiling Point
Go Ebullioscopic Constant of Solvent = Boiling Point Elevation/(Van't Hoff Factor*Molality)
Molality given Elevation in Boiling Point
Go Molality = Boiling Point Elevation/(Van't Hoff Factor*Ebullioscopic Constant of Solvent)
Van't Hoff Equation for Elevation in Boiling Point of Electrolyte
Go Boiling Point Elevation = Van't Hoff Factor*Ebullioscopic Constant of Solvent*Molality
Molal Boiling Point Elevation Constant given Boiling Point Elevation
Go Molal Boiling Point Elevation Constant = Boiling Point Elevation/Molality
Molality given Boiling Point Elevation and Constant
Go Molality = Boiling Point Elevation/Molal Boiling Point Elevation Constant
Boiling Point Elevation
Go Boiling Point Elevation = Molal Boiling Point Elevation Constant*Molality
Elevation in Boiling Point of Solvent
Go Boiling Point Elevation = Ebullioscopic Constant of Solvent*Molality

22 Important Formulas of Colligative Properties Calculators

Van't Hoff Osmotic Pressure for Mixture of Two Solutions
Go Osmotic Pressure = ((Van't Hoff Factor of Particle 1*Concentration of Particle 1)+(Van't Hoff Factor of Particle 2*Concentration of Particle 2))*[R]*Temperature
Osmotic Pressure given Vapour Pressure
Go Osmotic Pressure = ((Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)*[R]*Temperature)/(Molar Volume*Vapour Pressure of Pure Solvent)
Osmotic Pressure given Depression in Freezing Point
Go Osmotic Pressure = (Molar Enthalpy of Fusion*Depression in Freezing Point*Temperature)/(Molar Volume*(Solvent Freezing Point^2))
Relative Lowering of Vapour Pressure
Go Relative Lowering of Vapour Pressure = (Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)/Vapour Pressure of Pure Solvent
Van't Hoff Osmotic Pressure for Electrolyte
Go Osmotic Pressure = Van't Hoff Factor*Molar Concentration of Solute*Universal Gas Constant*Temperature
Ebullioscopic Constant using Latent Heat of Vaporization
Go Ebullioscopic Constant of Solvent = ([R]*Solvent BP given Latent Heat of Vaporization^2)/(1000*Latent Heat of Vaporization)
Osmotic Pressure given Concentration of Two Substances
Go Osmotic Pressure = (Concentration of Particle 1+Concentration of Particle 2)*[R]*Temperature
Ostwald-Walker Dynamic Method for Relative Lowering of Vapour Pressure
Go Relative Lowering of Vapour Pressure = Loss of Mass in Bulb Set B/(Loss of Mass in bulb set A+Loss of Mass in Bulb Set B)
Relative Lowering of Vapour Pressure given Number of Moles for Concentrated Solution
Go Relative Lowering of Vapour Pressure = Number of Moles of Solute/(Number of Moles of Solute+Number of Moles of Solvent)
Osmotic Pressure given Relative Lowering of Vapour Pressure
Go Osmotic Pressure = (Relative Lowering of Vapour Pressure*[R]*Temperature)/Molar Volume
Cryoscopic Constant given Latent Heat of Fusion
Go Cryoscopic Constant = ([R]*Solvent Freezing Point for Cryoscopic Constant^2)/(1000*Latent Heat of Fusion)
Van't Hoff Relative Lowering of Vapour Pressure given Molecular Mass and Molality
Go Colligative Pressure given Van't Hoff factor = (Van't Hoff Factor*Molality*Molecular Mass Solvent)/1000
Ebullioscopic Constant given Elevation in Boiling Point
Go Ebullioscopic Constant of Solvent = Boiling Point Elevation/(Van't Hoff Factor*Molality)
Van't Hoff Equation for Elevation in Boiling Point of Electrolyte
Go Boiling Point Elevation = Van't Hoff Factor*Ebullioscopic Constant of Solvent*Molality
Cryoscopic Constant given Depression in Freezing Point
Go Cryoscopic Constant = Depression in Freezing Point/(Van't Hoff Factor*Molality)
Van't Hoff equation for Depression in Freezing Point of electrolyte
Go Depression in Freezing Point = Van't Hoff Factor*Cryoscopic Constant*Molality
Total Concentration of Particles using Osmotic Pressure
Go Molar Concentration of Solute = Osmotic Pressure/([R]*Temperature)
Osmotic Pressure for Non Electrolyte
Go Osmotic Pressure = Molar Concentration of Solute*[R]*Temperature
Osmotic Pressure given Density of Solution
Go Osmotic Pressure = Density of Solution*[g]*Equilibrium Height
Relative Lowering of Vapour Pressure given Number of Moles for Dilute Solution
Go Relative Lowering of Vapour Pressure = Number of Moles of Solute/Number of Moles of Solvent
Boiling Point Elevation
Go Boiling Point Elevation = Molal Boiling Point Elevation Constant*Molality
Freezing Point Depression
Go Depression in Freezing Point = Cryoscopic Constant*Molality

Boiling Point Elevation Formula

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 7 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)
  • Boiling Point Elevation = (Molar Enthalpy of Fusion*Depression in Freezing Point*(Solvent Boiling Point^2))/(Molar Enthalpy of Vaporization*(Solvent Freezing Point^2))
  • Boiling Point Elevation = (Osmotic Pressure*Molar Volume*(Solvent Boiling Point^2))/(Temperature*Molar Enthalpy of Vaporization)
  • Boiling Point Elevation = (Relative Lowering of Vapour Pressure*[R]*(Solvent Boiling Point^2))/Molar Enthalpy of Vaporization
  • Boiling Point Elevation = Van't Hoff Factor*Ebullioscopic Constant of Solvent*Molality
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