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Molal Heat of Fusion of Solvent given Molecular Weight of Solvent Formula

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Molal Heat 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. Check FAQs

ΔH f = \frac{[R] \cdot ({T fp}^{2}) \cdot MW}{K f \cdot 1000}

ΔH_f - Molal Heat of Fusion?T_fp - Solvent Freezing Point?MW - Molecular Weight?K_f - Molal freezing point constant?[R] - Universal gas constant?

Molal Heat of Fusion of Solvent given Molecular Weight of Solvent Example

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Here is how the Molal Heat of Fusion of Solvent given Molecular Weight of Solvent equation looks like with Values.

Here is how the Molal Heat of Fusion of Solvent given Molecular Weight of Solvent equation looks like with Units.

Here is how the Molal Heat of Fusion of Solvent given Molecular Weight of Solvent equation looks like.

1.8448 = \frac{8.3145 \cdot (430^{2}) \cdot 120}{100 \cdot 1000}

1.8448J/mol = \frac{8.3145 \cdot ({430K}^{2}) \cdot 120g}{100K*kg/mol \cdot 1000}

1.8448 = \frac{8.3145 \cdot (430^{2}) \cdot 120}{100 \cdot 1000}

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Molal Heat of Fusion of Solvent given Molecular Weight of Solvent Solution

Follow our step by step solution on how to calculate Molal Heat of Fusion of Solvent given Molecular Weight of Solvent?

FIRST Step Consider the formula

ΔH f = \frac{[R] \cdot ({T fp}^{2}) \cdot MW}{K f \cdot 1000}

Next Step Substitute values of Variables

∴

ΔH f = \frac{[R] \cdot ({430K}^{2}) \cdot 120g}{100K*kg/mol \cdot 1000}

Next Step Substitute values of Constants

∴

ΔH f = \frac{8.3145 \cdot ({430K}^{2}) \cdot 120g}{100K*kg/mol \cdot 1000}

Next Step Convert Units

∴

ΔH f = \frac{8.3145 \cdot ({430K}^{2}) \cdot 0.12kg}{100K*kg/mol \cdot 1000}

Next Step Prepare to Evaluate

∴

ΔH f = \frac{8.3145 \cdot (430^{2}) \cdot 0.12}{100 \cdot 1000}

Next Step Evaluate

∴

ΔH f = 1.84481296571584J/mol

LAST Step Rounding Answer

∴

ΔH f = 1.8448J/mol

Molal Heat of Fusion of Solvent given Molecular Weight of Solvent Formula Elements

Variables

Constants

Molal Heat of Fusion

Molal Heat 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_f

Measurement: Energy Per MoleUnit: J/mol

Note: Value can be positive or negative.

Formulas to find Molal Heat of Fusion

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

Molecular Weight

Molecular Weight is the mass of a given molecule.

Symbol: MW

Measurement: WeightUnit: g

Note: Value can be positive or negative.

Formulas to find Molecular Weight

Molal freezing point constant

Molal freezing point constant, also known as cryoscopic constant is dependent on the properties of the solvent, not the solute.

Symbol: K_f

Measurement: Cryoscopic ConstantUnit: K*kg/mol

Note: Value can be positive or negative.

Formulas to find Molal freezing point constant

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 in Heat Capacity category

Go Stoichiometric Coefficient for i-th Component in Reaction

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Go Thermodynamic Beta

β = \frac{1}{[BoltZ] \cdot T}

Go Molar Heat Capacity

c m = \frac{Q}{N moles \cdot ∆T}

Go Number of Moles using Molar Heat Capacity

N moles = \frac{Q}{c m \cdot ∆T}

How to Evaluate Molal Heat of Fusion of Solvent given Molecular Weight of Solvent?

Molal Heat of Fusion of Solvent given Molecular Weight of Solvent evaluator uses Molal Heat of Fusion = ([R]*(Solvent Freezing Point^2)*Molecular Weight)/(Molal freezing point constant*1000) to evaluate the Molal Heat of Fusion, The Molal Heat of Fusion of Solvent given Molecular Weight of Solvent 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. Molal Heat of Fusion is denoted by ΔH_f symbol.

How to evaluate Molal Heat of Fusion of Solvent given Molecular Weight of Solvent using this online evaluator? To use this online evaluator for Molal Heat of Fusion of Solvent given Molecular Weight of Solvent, enter Solvent Freezing Point (T_fp), Molecular Weight (MW) & Molal freezing point constant (K_f) and hit the calculate button.

FAQs on Molal Heat of Fusion of Solvent given Molecular Weight of Solvent

What is the formula to find Molal Heat of Fusion of Solvent given Molecular Weight of Solvent?

The formula of Molal Heat of Fusion of Solvent given Molecular Weight of Solvent is expressed as Molal Heat of Fusion = ([R]*(Solvent Freezing Point^2)*Molecular Weight)/(Molal freezing point constant*1000). Here is an example- 1.844813 = ([R]*(430^2)*0.12)/(100*1000).

How to calculate Molal Heat of Fusion of Solvent given Molecular Weight of Solvent?

With Solvent Freezing Point (T_fp), Molecular Weight (MW) & Molal freezing point constant (K_f) we can find Molal Heat of Fusion of Solvent given Molecular Weight of Solvent using the formula - Molal Heat of Fusion = ([R]*(Solvent Freezing Point^2)*Molecular Weight)/(Molal freezing point constant*1000). This formula also uses Universal gas constant .

Can the Molal Heat of Fusion of Solvent given Molecular Weight of Solvent be negative?

Yes, the Molal Heat of Fusion of Solvent given Molecular Weight of Solvent, measured in Energy Per Mole can be negative.

Which unit is used to measure Molal Heat of Fusion of Solvent given Molecular Weight of Solvent?

Molal Heat of Fusion of Solvent given Molecular Weight of Solvent is usually measured using the Joule Per Mole[J/mol] for Energy Per Mole. KiloJoule Per Mole[J/mol], Kilocalorie Per Mole[J/mol] are the few other units in which Molal Heat of Fusion of Solvent given Molecular Weight of Solvent can be measured.

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Molal Heat of Fusion of Solvent given Molecular Weight of Solvent Formula

Molal Heat of Fusion of Solvent given Molecular Weight of Solvent Example

Molal Heat of Fusion of Solvent given Molecular Weight of Solvent Solution

Molal Heat of Fusion of Solvent given Molecular Weight of Solvent Formula Elements

Other formulas in Heat Capacity category

How to Evaluate Molal Heat of Fusion of Solvent given Molecular Weight of Solvent?

FAQs on Molal Heat of Fusion of Solvent given Molecular Weight of Solvent

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