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Depression in Freezing Point given Relative Lowering of Vapour Pressure Formula

GoDepression in Freezing Point of Solvent Formula

GoVan't Hoff equation for Depression in Freezing Point of electrolyte Formula

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The Depression in Freezing Point is the phenomena that describes why adding a solute to a solvent results in the lowering of the freezing point of the solvent. Check FAQs

ΔT f = \frac{RLVP \cdot [R] \cdot ({T fp}^{2})}{ΔH fusion}

ΔT_f - Depression in Freezing Point?RLVP - Relative Lowering of Vapour Pressure?T_fp - Solvent Freezing Point?ΔH_fusion - Molar Enthalpy of Fusion?[R] - Universal gas constant?

Depression in Freezing Point given Relative Lowering of Vapour Pressure Example

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Here is how the Depression in Freezing Point given Relative Lowering of Vapour Pressure equation looks like with Values.

Here is how the Depression in Freezing Point given Relative Lowering of Vapour Pressure equation looks like with Units.

Here is how the Depression in Freezing Point given Relative Lowering of Vapour Pressure equation looks like.

0.6915 = \frac{0.15 \cdot 8.3145 \cdot (430^{2})}{333.5}

0.6915K = \frac{0.15 \cdot 8.3145 \cdot ({430K}^{2})}{333.5kJ/mol}

0.6915 = \frac{0.15 \cdot 8.3145 \cdot (430^{2})}{333.5}

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Depression in Freezing Point » fx Depression in Freezing Point given Relative Lowering of Vapour Pressure

Depression in Freezing Point given Relative Lowering of Vapour Pressure Solution

Follow our step by step solution on how to calculate Depression in Freezing Point given Relative Lowering of Vapour Pressure?

FIRST Step Consider the formula

ΔT f = \frac{RLVP \cdot [R] \cdot ({T fp}^{2})}{ΔH fusion}

Next Step Substitute values of Variables

∴

ΔT f = \frac{0.15 \cdot [R] \cdot ({430K}^{2})}{333.5kJ/mol}

Next Step Substitute values of Constants

∴

ΔT f = \frac{0.15 \cdot 8.3145 \cdot ({430K}^{2})}{333.5kJ/mol}

Next Step Convert Units

∴

ΔT f = \frac{0.15 \cdot 8.3145 \cdot ({430K}^{2})}{333500J/mol}

Next Step Prepare to Evaluate

∴

ΔT f = \frac{0.15 \cdot 8.3145 \cdot (430^{2})}{333500}

Next Step Evaluate

∴

ΔT f = 0.691459132577152K

LAST Step Rounding Answer

∴

ΔT f = 0.6915K

Depression in Freezing Point given Relative Lowering of Vapour Pressure Formula Elements

Variables

Constants

Depression in Freezing Point

The Depression in Freezing Point is the phenomena that describes why adding a solute to a solvent results in the lowering of the freezing point of the solvent.

Symbol: ΔT_f

Measurement: TemperatureUnit: K

Note: Value can be positive or negative.

Formulas to find Depression in Freezing Point

Relative Lowering of Vapour Pressure

The Relative Lowering of Vapour Pressure is the lowering of vapour pressure of pure solvent on addition of solute.

Symbol: RLVP

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Relative Lowering of Vapour Pressure

Solvent Freezing Point

Solvent Freezing Point is the temperature at which the solvent freezes from liquid to solid state.

Symbol: T_fp

Measurement: TemperatureUnit: K

Note: Value can be positive or negative.

Formulas to find Solvent Freezing Point

Molar Enthalpy of Fusion

The Molar Enthalpy of Fusion is the amount of energy needed to change one mole of a substance from the solid phase to the liquid phase at constant temperature and pressure.

Symbol: ΔH_fusion

Measurement: Molar EnthalpyUnit: kJ/mol

Note: Value should be greater than 0.

Formulas to find Molar Enthalpy of Fusion

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 Depression in Freezing Point

Go Depression in Freezing Point of Solvent

ΔT f = k f \cdot m

Go Van't Hoff equation for Depression in Freezing Point of electrolyte

ΔT f = i \cdot k f \cdot m

Go Depression in Freezing Point given Vapour Pressure

ΔT f = \frac{(Po A - P A) \cdot [R] \cdot ({T fp}^{2})}{Po A \cdot ΔH fusion}

Go Depression in Freezing Point given Elevation in Boiling Point

ΔT f = \frac{ΔH vap \cdot ΔT b \cdot ({T fp}^{2})}{ΔH fusion \cdot ({T bp}^{2})}

Other formulas in Depression in Freezing Point category

Go Molality given Depression in Freezing Point

m = \frac{ΔT f}{k f \cdot i}

Go Cryoscopic Constant given Molar Enthalpy of Fusion

k f = \frac{[R] \cdot T fp \cdot T fp \cdot M solvent}{1000 \cdot ΔH fusion}

Go Cryoscopic Constant given Latent Heat of Fusion

k f = \frac{[R] \cdot {T f}^{2}}{1000 \cdot L fusion}

Go Freezing Point of Solvent given Cryoscopic Constant and Molar Enthalpy of Fusion

T fp = \sqrt{\frac{k f \cdot 1000 \cdot ΔH fusion}{[R] \cdot M solvent}}

How to Evaluate Depression in Freezing Point given Relative Lowering of Vapour Pressure?

Depression in Freezing Point given Relative Lowering of Vapour Pressure evaluator uses Depression in Freezing Point = (Relative Lowering of Vapour Pressure*[R]*(Solvent Freezing Point^2))/Molar Enthalpy of Fusion to evaluate the Depression in Freezing Point, The Depression in Freezing Point given Relative Lowering of Vapour Pressure refers to the lowering of the freezing point of solvents upon the addition of solutes. It is a colligative property described by the following formula. ΔTf = Kf× m. Depression in Freezing Point is denoted by ΔT_f symbol.

How to evaluate Depression in Freezing Point given Relative Lowering of Vapour Pressure using this online evaluator? To use this online evaluator for Depression in Freezing Point given Relative Lowering of Vapour Pressure, enter Relative Lowering of Vapour Pressure (RLVP), Solvent Freezing Point (T_fp) & Molar Enthalpy of Fusion (ΔH_fusion) and hit the calculate button.

FAQs on Depression in Freezing Point given Relative Lowering of Vapour Pressure

What is the formula to find Depression in Freezing Point given Relative Lowering of Vapour Pressure?

The formula of Depression in Freezing Point given Relative Lowering of Vapour Pressure is expressed as Depression in Freezing Point = (Relative Lowering of Vapour Pressure*[R]*(Solvent Freezing Point^2))/Molar Enthalpy of Fusion. Here is an example- 0.691459 = (0.15*[R]*(430^2))/333500.

How to calculate Depression in Freezing Point given Relative Lowering of Vapour Pressure?

With Relative Lowering of Vapour Pressure (RLVP), Solvent Freezing Point (T_fp) & Molar Enthalpy of Fusion (ΔH_fusion) we can find Depression in Freezing Point given Relative Lowering of Vapour Pressure using the formula - Depression in Freezing Point = (Relative Lowering of Vapour Pressure*[R]*(Solvent Freezing Point^2))/Molar Enthalpy of Fusion. This formula also uses Universal gas constant .

What are the other ways to Calculate Depression in Freezing Point?

Here are the different ways to Calculate Depression in Freezing Point-

Depression in Freezing Point=Cryoscopic Constant*Molality
Depression in Freezing Point=Van't Hoff Factor*Cryoscopic Constant*Molality
Depression in Freezing Point=((Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)*[R]*(Solvent Freezing Point^2))/(Vapour Pressure of Pure Solvent*Molar Enthalpy of Fusion)

Can the Depression in Freezing Point given Relative Lowering of Vapour Pressure be negative?

Yes, the Depression in Freezing Point given Relative Lowering of Vapour Pressure, measured in Temperature can be negative.

Which unit is used to measure Depression in Freezing Point given Relative Lowering of Vapour Pressure?

Depression in Freezing Point given Relative Lowering of Vapour Pressure is usually measured using the Kelvin[K] for Temperature. Celsius[K], Fahrenheit[K], Rankine[K] are the few other units in which Depression in Freezing Point given Relative Lowering of Vapour Pressure can be measured.

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Depression in Freezing Point given Relative Lowering of Vapour Pressure Formula

​GoDepression in Freezing Point of Solvent Formula

​GoVan't Hoff equation for Depression in Freezing Point of electrolyte Formula

Depression in Freezing Point given Relative Lowering of Vapour Pressure Example

Depression in Freezing Point given Relative Lowering of Vapour Pressure Solution

Depression in Freezing Point given Relative Lowering of Vapour Pressure Formula Elements

Other Formulas to find Depression in Freezing Point

Other formulas in Depression in Freezing Point category

How to Evaluate Depression in Freezing Point given Relative Lowering of Vapour Pressure?

FAQs on Depression in Freezing Point given Relative Lowering of Vapour Pressure

Variable Name

GoDepression in Freezing Point of Solvent Formula

GoVan't Hoff equation for Depression in Freezing Point of electrolyte Formula