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Diffusivity by Average Contact Time in Penetration Theory Formula

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GoDiffusivity by Surface Renewal Theory Formula

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The Diffusion Coefficient (DAB) is the amount of a particular substance that diffuses across a unit area in 1 second under the influence of a gradient of one unit. Check FAQs

D AB = \frac{t c \cdot ({k L (Avg)}^{2}) \cdot π}{4}

D_AB - Diffusion Coefficient (DAB)?t_c - Average Contact Time?k_{L (Avg)} - Average Convective Mass Transfer Coefficient?π - Archimedes' constant?

Diffusivity by Average Contact Time in Penetration Theory Example

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Here is how the Diffusivity by Average Contact Time in Penetration Theory equation looks like with Values.

Here is how the Diffusivity by Average Contact Time in Penetration Theory equation looks like with Units.

Here is how the Diffusivity by Average Contact Time in Penetration Theory equation looks like.

0.007 = \frac{11 \cdot ({0.0285}^{2}) \cdot 3.1416}{4}

0.007m²/s = \frac{11s \cdot ({0.0285m/s}^{2}) \cdot 3.1416}{4}

0.007 = \frac{11 \cdot ({0.0285}^{2}) \cdot 3.1416}{4}

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Diffusivity by Average Contact Time in Penetration Theory Solution

Follow our step by step solution on how to calculate Diffusivity by Average Contact Time in Penetration Theory?

FIRST Step Consider the formula

D AB = \frac{t c \cdot ({k L (Avg)}^{2}) \cdot π}{4}

Next Step Substitute values of Variables

∴

D AB = \frac{11s \cdot ({0.0285m/s}^{2}) \cdot π}{4}

Next Step Substitute values of Constants

∴

D AB = \frac{11s \cdot ({0.0285m/s}^{2}) \cdot 3.1416}{4}

Next Step Prepare to Evaluate

∴

D AB = \frac{11 \cdot ({0.0285}^{2}) \cdot 3.1416}{4}

Next Step Evaluate

∴

D AB = 0.00700011126095985m²/s

LAST Step Rounding Answer

∴

D AB = 0.007m²/s

Diffusivity by Average Contact Time in Penetration Theory Formula Elements

Variables

Constants

Diffusion Coefficient (DAB)

The Diffusion Coefficient (DAB) is the amount of a particular substance that diffuses across a unit area in 1 second under the influence of a gradient of one unit.

Symbol: D_AB

Measurement: DiffusivityUnit: m²/s

Note: Value should be greater than 0.

Formulas to find Diffusion Coefficient (DAB)

Average Contact Time

Average Contact Time is the variable used to define the time for contacting between liquid and vapor phases.

Symbol: t_c

Measurement: TimeUnit: s

Note: Value should be greater than 0.

Formulas to find Average Contact Time

Average Convective Mass Transfer Coefficient

The Average Convective Mass Transfer Coefficient is a function of geometry of the system and the velocity and properties of the fluid similar to the heat transfer coefficient.

Symbol: k_{L (Avg)}

Measurement: SpeedUnit: m/s

Note: Value should be greater than 0.

Formulas to find Average Convective Mass Transfer Coefficient

Archimedes' constant

Archimedes' constant is a mathematical constant that represents the ratio of the circumference of a circle to its diameter.

Symbol: π

Value: 3.14159265358979323846264338327950288

Other Formulas to find Diffusion Coefficient (DAB)

Go Diffusivity by Film Theory

D AB = k L \cdot δ

Go Diffusivity by Surface Renewal Theory

D AB = \frac{{k L}^{2}}{s}

Go Diffusivity by Instanataneous Contact Time in Penetration Theory

D AB = (t \cdot ({k L(Inst)}^{2}) \cdot π)

Other formulas in Mass Transfer Theories category

Go Mass Transfer Coefficient by Film Theory

k L = \frac{D AB}{δ}

Go Average Mass Transfer Coefficient by Penetration Theory

k L (Avg) = 2 \cdot \sqrt{\frac{D AB}{π \cdot t c}}

Go Mass Transfer Coefficient by Surface Renewal Theory

k L = \sqrt{D AB \cdot s}

Go Liquid Phase Mass Transfer Coefficient by Two Film Theory

K x = \frac{1}{(\frac{1}{k y \cdot H}) + (\frac{1}{k x})}

How to Evaluate Diffusivity by Average Contact Time in Penetration Theory?

Diffusivity by Average Contact Time in Penetration Theory evaluator uses Diffusion Coefficient (DAB) = (Average Contact Time*(Average Convective Mass Transfer Coefficient^2)*pi)/4 to evaluate the Diffusion Coefficient (DAB), The Diffusivity by Average Contact Time in Penetration Theory formula is used to calculate the diffusivity for the liquid phase in contact with the other phase based on penetration theory when average contact time and mass transfer coefficient are known. Diffusion Coefficient (DAB) is denoted by D_AB symbol.

How to evaluate Diffusivity by Average Contact Time in Penetration Theory using this online evaluator? To use this online evaluator for Diffusivity by Average Contact Time in Penetration Theory, enter Average Contact Time (t_c) & Average Convective Mass Transfer Coefficient (k_{L (Avg)}) and hit the calculate button.

FAQs on Diffusivity by Average Contact Time in Penetration Theory

What is the formula to find Diffusivity by Average Contact Time in Penetration Theory?

The formula of Diffusivity by Average Contact Time in Penetration Theory is expressed as Diffusion Coefficient (DAB) = (Average Contact Time*(Average Convective Mass Transfer Coefficient^2)*pi)/4. Here is an example- 0.007 = (11*(0.028465^2)*pi)/4.

How to calculate Diffusivity by Average Contact Time in Penetration Theory?

With Average Contact Time (t_c) & Average Convective Mass Transfer Coefficient (k_{L (Avg)}) we can find Diffusivity by Average Contact Time in Penetration Theory using the formula - Diffusion Coefficient (DAB) = (Average Contact Time*(Average Convective Mass Transfer Coefficient^2)*pi)/4. This formula also uses Archimedes' constant .

What are the other ways to Calculate Diffusion Coefficient (DAB)?

Here are the different ways to Calculate Diffusion Coefficient (DAB)-

Diffusion Coefficient (DAB)=Convective Mass Transfer Coefficient*Film Thickness
Diffusion Coefficient (DAB)=(Convective Mass Transfer Coefficient^2)/Surface Renewal Rate
Diffusion Coefficient (DAB)=(Instantaneous Contact Time*(Instantaneous Convective Mass Transfer Coefficient^2)*pi)

Can the Diffusivity by Average Contact Time in Penetration Theory be negative?

No, the Diffusivity by Average Contact Time in Penetration Theory, measured in Diffusivity cannot be negative.

Which unit is used to measure Diffusivity by Average Contact Time in Penetration Theory?

Diffusivity by Average Contact Time in Penetration Theory is usually measured using the Square Meter Per Second[m²/s] for Diffusivity. Square Centimeter Per Second[m²/s], Square Millimeter per Second[m²/s] are the few other units in which Diffusivity by Average Contact Time in Penetration Theory can be measured.

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: Unit

Diffusivity by Average Contact Time in Penetration Theory Formula

​GoDiffusivity by Film Theory Formula

​GoDiffusivity by Surface Renewal Theory Formula

Diffusivity by Average Contact Time in Penetration Theory Example

Diffusivity by Average Contact Time in Penetration Theory Solution

Diffusivity by Average Contact Time in Penetration Theory Formula Elements

Other Formulas to find Diffusion Coefficient (DAB)

Other formulas in Mass Transfer Theories category

How to Evaluate Diffusivity by Average Contact Time in Penetration Theory?

FAQs on Diffusivity by Average Contact Time in Penetration Theory

Variable Name

GoDiffusivity by Film Theory Formula

GoDiffusivity by Surface Renewal Theory Formula