Ebullioscopic Constant using Molar Enthalpy of Vaporization Calculator

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Elevation in Boiling Point

Clausius-Clapeyron Equation

Depression in Freezing Point

Gibb's Phase Rule

Immiscible Liquids

Important Formulas of Clausius-Clapeyron Equation

Important Formulas of Colligative Properties

Osmotic Pressure

Relative Lowering of Vapour Pressure

Van't Hoff Factor

✖Solvent boiling point is the temperature at which the vapor pressure of the solvent equals the pressure surrounding and changes into a vapor.ⓘ Solvent Boiling Point [T_bp]			+10% -10%
✖The Molar Mass of Solvent is the molar mass of the medium in which the solute is dissolved.ⓘ Molar Mass of Solvent [M_solvent]			+10% -10%
✖The Molar Enthalpy of Vaporization is the amount of energy needed to change one mole of a substance from the liquid phase to the gas phase at constant temperature and pressure.ⓘ Molar Enthalpy of Vaporization [ΔH_vap]			+10% -10%

✖The Ebullioscopic Constant of Solvent relates molality to boiling point elevation.ⓘ Ebullioscopic Constant using Molar Enthalpy of Vaporization [k_b]

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Formula

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Ebullioscopic Constant using Molar Enthalpy of Vaporization

Formula

`"k"_{"b"} = ("[R]"*"T"_{"bp"}*"T"_{"bp"}*"M"_{"solvent"})/(1000*"ΔH"_{"vap"})`

Example

`"18.38579K*kg/mol"=("[R]"*"15K"*"15K"*"400kg")/(1000*"40.7kJ/mol")`

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Ebullioscopic Constant using Molar Enthalpy of Vaporization Solution

STEP 0: Pre-Calculation Summary

Formula Used

Ebullioscopic Constant of Solvent = ([R]*Solvent Boiling Point*Solvent Boiling Point*Molar Mass of Solvent)/(1000*Molar Enthalpy of Vaporization)
k_b = ([R]*T_bp*T_bp*M_solvent)/(1000*ΔH_vap)
This formula uses 1 Constants, 4 Variables

Constants Used

[R] - Universal gas constant Value Taken As 8.31446261815324

Variables Used

Ebullioscopic Constant of Solvent - (Measured in Kelvin Kilogram per Mole) - The Ebullioscopic Constant of Solvent relates molality to boiling point elevation.
Solvent Boiling Point - (Measured in Kelvin) - Solvent boiling point is the temperature at which the vapor pressure of the solvent equals the pressure surrounding and changes into a vapor.
Molar Mass of Solvent - (Measured in Gram) - The Molar Mass of Solvent is the molar mass of the medium in which the solute is dissolved.
Molar Enthalpy of Vaporization - (Measured in Joule per Mole) - The Molar Enthalpy of Vaporization is the amount of energy needed to change one mole of a substance from the liquid phase to the gas phase at constant temperature and pressure.

STEP 1: Convert Input(s) to Base Unit

Solvent Boiling Point: 15 Kelvin --> 15 Kelvin No Conversion Required
Molar Mass of Solvent: 400 Kilogram --> 400000 Gram (Check conversion here)
Molar Enthalpy of Vaporization: 40.7 Kilojoule per Mole --> 40700 Joule per Mole (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

k_b = ([R]*T_bp*T_bp*M_solvent)/(1000*ΔH_vap) --> ([R]*15*15*400000)/(1000*40700)

Evaluating ... ...

k_b = 18.3857895733118

STEP 3: Convert Result to Output's Unit

18.3857895733118 Kelvin Kilogram per Mole --> No Conversion Required

FINAL ANSWER

18.3857895733118 ≈ 18.38579 Kelvin Kilogram per Mole <-- Ebullioscopic Constant of Solvent

(Calculation completed in 00.004 seconds)

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Home » Chemistry » Solution and Colligative properties » Elevation in Boiling Point » Ebullioscopic Constant using Molar Enthalpy of Vaporization

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Created by Prerana Bakli

University of Hawaiʻi at Mānoa (UH Manoa), Hawaii, USA

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Verified by Akshada Kulkarni

National Institute of Information Technology (NIIT), Neemrana

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< 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

Ebullioscopic Constant using Molar Enthalpy of Vaporization Formula

Ebullioscopic Constant of Solvent = ([R]*Solvent Boiling Point*Solvent Boiling Point*Molar Mass of Solvent)/(1000*Molar Enthalpy of Vaporization)
k_b = ([R]*T_bp*T_bp*M_solvent)/(1000*ΔH_vap)

What is Molar Enthalpy of Vaporization?

Molar enthalpy of vaporization is the amount of energy needed to change one mole of a substance from the liquid phase to the gas phase at constant temperature and pressure. The usual unit is kilojoules per mole (kJ/mol). Because energy is required to vaporize a liquid, molar enthalpy of vaporization has a positive sign. This indicates energy is absorbed by the system to get the molecules into the gas state.

How to Calculate Ebullioscopic Constant using Molar Enthalpy of Vaporization?

Ebullioscopic Constant using Molar Enthalpy of Vaporization calculator uses Ebullioscopic Constant of Solvent = ([R]*Solvent Boiling Point*Solvent Boiling Point*Molar Mass of Solvent)/(1000*Molar Enthalpy of Vaporization) to calculate the Ebullioscopic Constant of Solvent, The Ebullioscopic Constant using Molar Enthalpy of Vaporization is defined as the elevation in boiling point when one mole of non-volatile solute is added to one kilogram of solvent. Ebullioscopic Constant of Solvent is denoted by k_b symbol.

How to calculate Ebullioscopic Constant using Molar Enthalpy of Vaporization using this online calculator? To use this online calculator for Ebullioscopic Constant using Molar Enthalpy of Vaporization, enter Solvent Boiling Point (T_bp), Molar Mass of Solvent (M_solvent) & Molar Enthalpy of Vaporization (ΔH_vap) and hit the calculate button. Here is how the Ebullioscopic Constant using Molar Enthalpy of Vaporization calculation can be explained with given input values -> 18.38579 = ([R]*15*15*400)/(1000*40700).

FAQ

What is Ebullioscopic Constant using Molar Enthalpy of Vaporization?

The Ebullioscopic Constant using Molar Enthalpy of Vaporization is defined as the elevation in boiling point when one mole of non-volatile solute is added to one kilogram of solvent and is represented as k_b = ([R]*T_bp*T_bp*M_solvent)/(1000*ΔH_vap) or Ebullioscopic Constant of Solvent = ([R]*Solvent Boiling Point*Solvent Boiling Point*Molar Mass of Solvent)/(1000*Molar Enthalpy of Vaporization). Solvent boiling point is the temperature at which the vapor pressure of the solvent equals the pressure surrounding and changes into a vapor, The Molar Mass of Solvent is the molar mass of the medium in which the solute is dissolved & The Molar Enthalpy of Vaporization is the amount of energy needed to change one mole of a substance from the liquid phase to the gas phase at constant temperature and pressure.

How to calculate Ebullioscopic Constant using Molar Enthalpy of Vaporization?

The Ebullioscopic Constant using Molar Enthalpy of Vaporization is defined as the elevation in boiling point when one mole of non-volatile solute is added to one kilogram of solvent is calculated using Ebullioscopic Constant of Solvent = ([R]*Solvent Boiling Point*Solvent Boiling Point*Molar Mass of Solvent)/(1000*Molar Enthalpy of Vaporization). To calculate Ebullioscopic Constant using Molar Enthalpy of Vaporization, you need Solvent Boiling Point (T_bp), Molar Mass of Solvent (M_solvent) & Molar Enthalpy of Vaporization (ΔH_vap). With our tool, you need to enter the respective value for Solvent Boiling Point, Molar Mass of Solvent & Molar Enthalpy of Vaporization 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 Ebullioscopic Constant of Solvent?

In this formula, Ebullioscopic Constant of Solvent uses Solvent Boiling Point, Molar Mass of Solvent & Molar Enthalpy of Vaporization. We can use 2 other way(s) to calculate the same, which is/are as follows -

Ebullioscopic Constant of Solvent = ([R]*Solvent BP given Latent Heat of Vaporization^2)/(1000*Latent Heat of Vaporization)
Ebullioscopic Constant of Solvent = Boiling Point Elevation/(Van't Hoff Factor*Molality)

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