FormulaDen.com

Physics Chemistry Math Chemical Engineering Civil Electrical Electronics Electronics and Instrumentation Materials Science Mechanical Production Engineering Financial Health

Ebullioscopic Constant using Molar Enthalpy of Vaporization Formula

GoEbullioscopic Constant using Latent Heat of Vaporization Formula

GoEbullioscopic Constant given Elevation in Boiling Point Formula

Fx Copy

LaTeX Copy

The Ebullioscopic Constant of Solvent relates molality to boiling point elevation. Check FAQs

k b = \frac{[R] \cdot T bp \cdot T bp \cdot M solvent}{1000 \cdot ΔH vap}

k_b - Ebullioscopic Constant of Solvent?T_bp - Solvent Boiling Point?M_solvent - Molar Mass of Solvent?ΔH_vap - Molar Enthalpy of Vaporization?[R] - Universal gas constant?

Ebullioscopic Constant using Molar Enthalpy of Vaporization Example

With values

With units

Only example

Here is how the Ebullioscopic Constant using Molar Enthalpy of Vaporization equation looks like with Values.

Here is how the Ebullioscopic Constant using Molar Enthalpy of Vaporization equation looks like with Units.

Here is how the Ebullioscopic Constant using Molar Enthalpy of Vaporization equation looks like.

18.3858 = \frac{8.3145 \cdot 15 \cdot 15 \cdot 400}{1000 \cdot 40.7}

18.3858K*kg/mol = \frac{8.3145 \cdot 15K \cdot 15K \cdot 400kg}{1000 \cdot 40.7kJ/mol}

18.3858 = \frac{8.3145 \cdot 15 \cdot 15 \cdot 400}{1000 \cdot 40.7}

Tip: Use pencil ( Pencil

) icon above to edit Input Values and Units.

Calculate

Recalculate

Solution

Copy

Reset

You are here -

Home » Category

Chemistry » Category

Solution and Colligative properties » Category

Elevation in Boiling Point » fx Ebullioscopic Constant using Molar Enthalpy of Vaporization

Ebullioscopic Constant using Molar Enthalpy of Vaporization Solution

Follow our step by step solution on how to calculate Ebullioscopic Constant using Molar Enthalpy of Vaporization?

FIRST Step Consider the formula

k b = \frac{[R] \cdot T bp \cdot T bp \cdot M solvent}{1000 \cdot ΔH vap}

Next Step Substitute values of Variables

∴

k b = \frac{[R] \cdot 15K \cdot 15K \cdot 400kg}{1000 \cdot 40.7kJ/mol}

Next Step Substitute values of Constants

∴

k b = \frac{8.3145 \cdot 15K \cdot 15K \cdot 400kg}{1000 \cdot 40.7kJ/mol}

Next Step Convert Units

∴

k b = \frac{8.3145 \cdot 15K \cdot 15K \cdot 400000g}{1000 \cdot 40700J/mol}

Next Step Prepare to Evaluate

∴

k b = \frac{8.3145 \cdot 15 \cdot 15 \cdot 400000}{1000 \cdot 40700}

Next Step Evaluate

∴

k b = 18.3857895733118K*kg/mol

LAST Step Rounding Answer

∴

k b = 18.3858K*kg/mol

Ebullioscopic Constant using Molar Enthalpy of Vaporization Formula Elements

Variables

Constants

Ebullioscopic Constant of Solvent

The Ebullioscopic Constant of Solvent relates molality to boiling point elevation.

Symbol: k_b

Measurement: Cryoscopic ConstantUnit: K*kg/mol

Note: Value should be greater than 0.

Formulas to find Ebullioscopic Constant of Solvent

Solvent Boiling Point

Solvent boiling point is the temperature at which the vapor pressure of the solvent equals the pressure surrounding and changes into a vapor.

Symbol: T_bp

Measurement: TemperatureUnit: K

Note: Value can be positive or negative.

Formulas to find Solvent Boiling Point

Molar Mass of Solvent

The Molar Mass of Solvent is the molar mass of the medium in which the solute is dissolved.

Symbol: M_solvent

Measurement: WeightUnit: kg

Note: Value can be positive or negative.

Formulas to find Molar Mass of Solvent

Molar Enthalpy of Vaporization

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.

Symbol: ΔH_vap

Measurement: Molar EnthalpyUnit: kJ/mol

Note: Value should be greater than 0.

Formulas to find Molar Enthalpy of Vaporization

Universal gas constant

Universal gas constant is a fundamental physical constant that appears in the ideal gas law, relating the pressure, volume, and temperature of an ideal gas.

Symbol: [R]

Value: 8.31446261815324

Other Formulas to find Ebullioscopic Constant of Solvent

Go Ebullioscopic Constant using Latent Heat of Vaporization

k b = \frac{[R] \cdot {T sbp}^{2}}{1000 \cdot L vaporization}

Go Ebullioscopic Constant given Elevation in Boiling Point

k b = \frac{ΔT b}{i \cdot m}

Other formulas in Elevation in Boiling Point category

Go Elevation in Boiling Point of Solvent

ΔT b = k b \cdot m

Go Boiling point of Solvent given Ebullioscopic Constant and Latent Heat of Vaporization

T bp = \sqrt{\frac{k b \cdot 1000 \cdot L vaporization}{[R]}}

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

T bp = \sqrt{\frac{k b \cdot 1000 \cdot ΔH vap}{[R] \cdot M solvent}}

Go Latent Heat of Vaporization given Boiling point of solvent

L vaporization = \frac{[R] \cdot T bp \cdot T bp}{1000 \cdot k b}

How to Evaluate Ebullioscopic Constant using Molar Enthalpy of Vaporization?

Ebullioscopic Constant using Molar Enthalpy of Vaporization evaluator uses Ebullioscopic Constant of Solvent = ([R]*Solvent Boiling Point*Solvent Boiling Point*Molar Mass of Solvent)/(1000*Molar Enthalpy of Vaporization) to evaluate 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 evaluate Ebullioscopic Constant using Molar Enthalpy of Vaporization using this online evaluator? To use this online evaluator 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.

FAQs on Ebullioscopic Constant using Molar Enthalpy of Vaporization

What is the formula to find Ebullioscopic Constant using Molar Enthalpy of Vaporization?

The formula of Ebullioscopic Constant using Molar Enthalpy of Vaporization is expressed as Ebullioscopic Constant of Solvent = ([R]*Solvent Boiling Point*Solvent Boiling Point*Molar Mass of Solvent)/(1000*Molar Enthalpy of Vaporization). Here is an example- 18.38579 = ([R]*15*15*400)/(1000*40700).

How to calculate Ebullioscopic Constant using Molar Enthalpy of Vaporization?

With Solvent Boiling Point (T_bp), Molar Mass of Solvent (M_solvent) & Molar Enthalpy of Vaporization (ΔH_vap) we can find Ebullioscopic Constant using Molar Enthalpy of Vaporization using the formula - Ebullioscopic Constant of Solvent = ([R]*Solvent Boiling Point*Solvent Boiling Point*Molar Mass of Solvent)/(1000*Molar Enthalpy of Vaporization). This formula also uses Universal gas constant .

What are the other ways to Calculate Ebullioscopic Constant of Solvent?

Here are the different ways to Calculate Ebullioscopic Constant of Solvent-

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)

Can the Ebullioscopic Constant using Molar Enthalpy of Vaporization be negative?

No, the Ebullioscopic Constant using Molar Enthalpy of Vaporization, measured in Cryoscopic Constant cannot be negative.

Which unit is used to measure Ebullioscopic Constant using Molar Enthalpy of Vaporization?

Ebullioscopic Constant using Molar Enthalpy of Vaporization is usually measured using the Kelvin Kilogram per Mole[K*kg/mol] for Cryoscopic Constant. Kelvin Gram per Mole[K*kg/mol] are the few other units in which Ebullioscopic Constant using Molar Enthalpy of Vaporization can be measured.

Let Others Know

✖

Facebook

Twitter

Copied!

: Value
: Unit