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Osmotic Pressure Drop Based on Solution Diffusion Model Formula

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Osmotic pressure is the minimum pressure that must be applied to a solution to prevent the inward flow of its pure solvent across a semipermeable membrane. Check FAQs

Δπ = ΔP atm - (\frac{J wm \cdot [R] \cdot T \cdot l m}{D w \cdot C w \cdot V l})

Δπ - Osmotic Pressure?ΔP_atm - Membrane Pressure Drop?J_wm - Mass Water Flux?T - Temperature?l_m - Membrane Layer Thickness?D_w - Membrane Water Diffusivity?C_w - Membrane Water Concentration?V_l - Partial Molar Volume?[R] - Universal gas constant?

Osmotic Pressure Drop Based on Solution Diffusion Model Example

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Here is how the Osmotic Pressure Drop Based on Solution Diffusion Model equation looks like with Values.

Here is how the Osmotic Pressure Drop Based on Solution Diffusion Model equation looks like with Units.

Here is how the Osmotic Pressure Drop Based on Solution Diffusion Model equation looks like.

39.4974 = 81.32 - (\frac{6.3E-5 \cdot 8.3145 \cdot 298 \cdot 1.3E-5}{1.8E-10 \cdot 156 \cdot 0.018})

39.4974at = 81.32at - (\frac{6.3E-5kg/s/m² \cdot 8.3145 \cdot 298K \cdot 1.3E-5m}{1.8E-10m²/s \cdot 156kg/m³ \cdot 0.018m³/kmol})

39.4974 = 81.32 - (\frac{6.3E-5 \cdot 8.3145 \cdot 298 \cdot 1.3E-5}{1.8E-10 \cdot 156 \cdot 0.018})

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Osmotic Pressure Drop Based on Solution Diffusion Model Solution

Follow our step by step solution on how to calculate Osmotic Pressure Drop Based on Solution Diffusion Model?

FIRST Step Consider the formula

Δπ = ΔP atm - (\frac{J wm \cdot [R] \cdot T \cdot l m}{D w \cdot C w \cdot V l})

Next Step Substitute values of Variables

∴

Δπ = 81.32at - (\frac{6.3E-5kg/s/m² \cdot [R] \cdot 298K \cdot 1.3E-5m}{1.8E-10m²/s \cdot 156kg/m³ \cdot 0.018m³/kmol})

Next Step Substitute values of Constants

∴

Δπ = 81.32at - (\frac{6.3E-5kg/s/m² \cdot 8.3145 \cdot 298K \cdot 1.3E-5m}{1.8E-10m²/s \cdot 156kg/m³ \cdot 0.018m³/kmol})

Next Step Convert Units

∴

Δπ = 8E+6Pa - (\frac{6.3E-5kg/s/m² \cdot 8.3145 \cdot 298K \cdot 1.3E-5m}{1.8E-10m²/s \cdot 156kg/m³ \cdot 1.8E-5m³/mol})

Next Step Prepare to Evaluate

∴

Δπ = 8E+6 - (\frac{6.3E-5 \cdot 8.3145 \cdot 298 \cdot 1.3E-5}{1.8E-10 \cdot 156 \cdot 1.8E-5})

Next Step Evaluate

∴

Δπ = 3873375.18127988Pa

Next Step Convert to Output's Unit

∴

Δπ = 39.4974347129741at

LAST Step Rounding Answer

∴

Δπ = 39.4974at

Osmotic Pressure Drop Based on Solution Diffusion Model Formula Elements

Variables

Constants

Osmotic Pressure

Osmotic pressure is the minimum pressure that must be applied to a solution to prevent the inward flow of its pure solvent across a semipermeable membrane.

Symbol: Δπ

Measurement: PressureUnit: at

Note: Value should be greater than 0.

Formulas to find Osmotic Pressure

Membrane Pressure Drop

Membrane pressure drop is the difference in pressure between the inlet and outlet of a membrane system, housing (pressure vessel), or element.

Symbol: ΔP_atm

Measurement: PressureUnit: at

Note: Value should be greater than 0.

Formulas to find Membrane Pressure Drop

Mass Water Flux

Mass Water flux is defined as the rate of movement of water across a surface or through a medium.

Symbol: J_wm

Measurement: Mass FluxUnit: kg/s/m²

Note: Value should be greater than 0.

Formulas to find Mass Water Flux

Temperature

Temperature is a physical quantity that expresses quantitatively the attribute of hotness or coldness.

Symbol: T

Measurement: TemperatureUnit: K

Note: Value should be greater than 274.15.

Formulas to find Temperature

Membrane Layer Thickness

Membrane Layer Thickness is the distance between the two outer surfaces of a membrane. It is typically measured in nanometers (nm), which are billionths of a meter.

Symbol: l_m

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Membrane Layer Thickness

Membrane Water Diffusivity

Membrane water diffusivity is the rate at which water molecules diffuse across a membrane. It is typically measured in square meters per second (m^2/s).

Symbol: D_w

Measurement: Kinematic ViscosityUnit: m²/s

Note: Value should be greater than 0.

Formulas to find Membrane Water Diffusivity

Membrane Water Concentration

Membrane water concentration (MWC) is the concentration of water in a membrane. It is typically measured in moles per cubic meter (kg/m^3).

Symbol: C_w

Measurement: DensityUnit: kg/m³

Note: Value should be greater than 0.

Formulas to find Membrane Water Concentration

Partial Molar Volume

The partial molar volume of a substance in a mixture is the change in volume of the mixture per mole of that substance added, at constant temperature and pressure.

Symbol: V_l

Measurement: Molar VolumeUnit: m³/kmol

Note: Value should be greater than 0.

Formulas to find Partial Molar Volume

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 Membrane Characteristics category

Go Pressure Driving Force in Membrane

ΔP m = R m \cdot μ \cdot J wM

Go Membrane Pore Diameter

d = {(\frac{32 \cdot μ \cdot J wM \cdot Τ \cdot l mt}{ε \cdot ΔP m})}^{0.5}

How to Evaluate Osmotic Pressure Drop Based on Solution Diffusion Model?

Osmotic Pressure Drop Based on Solution Diffusion Model evaluator uses Osmotic Pressure = Membrane Pressure Drop-((Mass Water Flux*[R]*Temperature*Membrane Layer Thickness)/(Membrane Water Diffusivity*Membrane Water Concentration*Partial Molar Volume)) to evaluate the Osmotic Pressure, Osmotic Pressure Drop Based on Solution Diffusion Model is defined as the difference in pressure between the feed and permeate sides of a semi-permeable membrane due to the osmotic pressure of the feed solution. Osmotic Pressure is denoted by Δπ symbol.

How to evaluate Osmotic Pressure Drop Based on Solution Diffusion Model using this online evaluator? To use this online evaluator for Osmotic Pressure Drop Based on Solution Diffusion Model, enter Membrane Pressure Drop (ΔP_atm), Mass Water Flux (J_wm), Temperature (T), Membrane Layer Thickness (l_m), Membrane Water Diffusivity (D_w), Membrane Water Concentration (C_w) & Partial Molar Volume (V_l) and hit the calculate button.

FAQs on Osmotic Pressure Drop Based on Solution Diffusion Model

What is the formula to find Osmotic Pressure Drop Based on Solution Diffusion Model?

The formula of Osmotic Pressure Drop Based on Solution Diffusion Model is expressed as Osmotic Pressure = Membrane Pressure Drop-((Mass Water Flux*[R]*Temperature*Membrane Layer Thickness)/(Membrane Water Diffusivity*Membrane Water Concentration*Partial Molar Volume)). Here is an example- 0.000389 = 7974767.78-((6.3E-05*[R]*298*1.3E-05)/(1.762E-10*156*1.8E-05)).

How to calculate Osmotic Pressure Drop Based on Solution Diffusion Model?

With Membrane Pressure Drop (ΔP_atm), Mass Water Flux (J_wm), Temperature (T), Membrane Layer Thickness (l_m), Membrane Water Diffusivity (D_w), Membrane Water Concentration (C_w) & Partial Molar Volume (V_l) we can find Osmotic Pressure Drop Based on Solution Diffusion Model using the formula - Osmotic Pressure = Membrane Pressure Drop-((Mass Water Flux*[R]*Temperature*Membrane Layer Thickness)/(Membrane Water Diffusivity*Membrane Water Concentration*Partial Molar Volume)). This formula also uses Universal gas constant .

Can the Osmotic Pressure Drop Based on Solution Diffusion Model be negative?

Yes, the Osmotic Pressure Drop Based on Solution Diffusion Model, measured in Pressure can be negative.

Which unit is used to measure Osmotic Pressure Drop Based on Solution Diffusion Model?

Osmotic Pressure Drop Based on Solution Diffusion Model is usually measured using the Atmosphere Technical[at] for Pressure. Pascal[at], Kilopascal[at], Bar[at] are the few other units in which Osmotic Pressure Drop Based on Solution Diffusion Model can be measured.

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Osmotic Pressure Drop Based on Solution Diffusion Model Formula

Osmotic Pressure Drop Based on Solution Diffusion Model Example

Osmotic Pressure Drop Based on Solution Diffusion Model Solution

Osmotic Pressure Drop Based on Solution Diffusion Model Formula Elements

Other formulas in Membrane Characteristics category

How to Evaluate Osmotic Pressure Drop Based on Solution Diffusion Model?

FAQs on Osmotic Pressure Drop Based on Solution Diffusion Model

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