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Relative Lowering of Vapour Pressure Formula

GoOstwald-Walker Dynamic Method for Relative Lowering of Vapour Pressure Formula

GoRelative Lowering of Vapour Pressure given Number of Moles for Concentrated Solution Formula

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

Δp = \frac{p o - p}{p o}

Δp - Relative Lowering of Vapour Pressure?p_o - Vapour Pressure of Pure Solvent?p - Vapour Pressure of Solvent in Solution?

Relative Lowering of Vapour Pressure Example

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Here is how the Relative Lowering of Vapour Pressure equation looks like with Values.

Here is how the Relative Lowering of Vapour Pressure equation looks like with Units.

Here is how the Relative Lowering of Vapour Pressure equation looks like.

0.0521 = \frac{2000 - 1895.86}{2000}

0.0521 = \frac{2000Pa - 1895.86Pa}{2000Pa}

0.0521 = \frac{2000 - 1895.86}{2000}

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Relative Lowering of Vapour Pressure Solution

Follow our step by step solution on how to calculate Relative Lowering of Vapour Pressure?

FIRST Step Consider the formula

Δp = \frac{p o - p}{p o}

Next Step Substitute values of Variables

∴

Δp = \frac{2000Pa - 1895.86Pa}{2000Pa}

Next Step Prepare to Evaluate

∴

Δp = \frac{2000 - 1895.86}{2000}

Next Step Evaluate

∴

Δp = 0.05207

LAST Step Rounding Answer

∴

Δp = 0.0521

Relative Lowering of Vapour Pressure Formula Elements

Variables

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: Δp

Measurement: NAUnit: Unitless

Note: Value can be positive or negative.

Formulas to find Relative Lowering of Vapour Pressure

Vapour Pressure of Pure Solvent

The Vapour Pressure of Pure Solvent is the vapour pressure of solvent prior to addition of solute.

Symbol: p_o

Measurement: PressureUnit: Pa

Note: Value should be greater than 0.

Formulas to find Vapour Pressure of Pure Solvent

Vapour Pressure of Solvent in Solution

The Vapour Pressure of Solvent in Solution is the vapour pressure of solvent post addition of solute.

Symbol: p

Measurement: PressureUnit: Pa

Note: Value should be greater than 0.

Formulas to find Vapour Pressure of Solvent in Solution

Other Formulas to find Relative Lowering of Vapour Pressure

Go Ostwald-Walker Dynamic Method for Relative Lowering of Vapour Pressure

Δp = \frac{w B}{w A + w B}

Go Relative Lowering of Vapour Pressure given Number of Moles for Concentrated Solution

Δp = \frac{n}{n + N}

Go Relative Lowering of Vapour Pressure given Number of Moles for Dilute Solution

Δp = \frac{n}{N}

Other formulas in Relative Lowering of Vapour Pressure category

Go Osmotic Pressure for Non Electrolyte

π = c \cdot [R] \cdot T

Go Osmotic Pressure given Concentration of Two Substances

π = (C 1 + C 2) \cdot [R] \cdot T

Go Osmotic Pressure given Density of Solution

π = ρ sol \cdot [g] \cdot h

Go Osmotic Pressure given Depression in Freezing Point

π = \frac{ΔH fusion \cdot ΔT f \cdot T}{V m \cdot ({T fp}^{2})}

How to Evaluate Relative Lowering of Vapour Pressure?

Relative Lowering of Vapour Pressure evaluator uses Relative Lowering of Vapour Pressure = (Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)/Vapour Pressure of Pure Solvent to evaluate the Relative Lowering of Vapour Pressure, The Relative Lowering of Vapour Pressure is the relative measure of lowering of vapour pressure of solvent post addition of solute. Relative Lowering of Vapour Pressure is denoted by Δp symbol.

How to evaluate Relative Lowering of Vapour Pressure using this online evaluator? To use this online evaluator for Relative Lowering of Vapour Pressure, enter Vapour Pressure of Pure Solvent (p_o) & Vapour Pressure of Solvent in Solution (p) and hit the calculate button.

FAQs on Relative Lowering of Vapour Pressure

What is the formula to find Relative Lowering of Vapour Pressure?

The formula of Relative Lowering of Vapour Pressure is expressed as Relative Lowering of Vapour Pressure = (Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)/Vapour Pressure of Pure Solvent. Here is an example- 0.05207 = (2000-1895.86)/2000.

How to calculate Relative Lowering of Vapour Pressure?

With Vapour Pressure of Pure Solvent (p_o) & Vapour Pressure of Solvent in Solution (p) we can find Relative Lowering of Vapour Pressure using the formula - Relative Lowering of Vapour Pressure = (Vapour Pressure of Pure Solvent-Vapour Pressure of Solvent in Solution)/Vapour Pressure of Pure Solvent.

What are the other ways to Calculate Relative Lowering of Vapour Pressure?

Here are the different ways to Calculate Relative Lowering of Vapour Pressure-

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=Number of Moles of Solute/(Number of Moles of Solute+Number of Moles of Solvent)
Relative Lowering of Vapour Pressure=Number of Moles of Solute/Number of Moles of Solvent

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