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The Selectivity or Separation Factor is defined as the preferential uptake of the solute by the solvent over the carrier. Check FAQs
βC, A=ΥcRΥcEΥaRΥaE
βC, A - Selectivity?ΥcR - Activity Coefficient of Solute in Raffinate?ΥcE - Activity Coefficient of Solute in Extract?ΥaR - Activity Coefficient of Carrier Liq in Raffinate?ΥaE - Activity Coefficient of Carrier Liquid in Extract?

Selectvity of Solute based on Activity Coefficients Example

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Here is how the Selectvity of Solute based on Activity Coefficients equation looks like with Values.

Here is how the Selectvity of Solute based on Activity Coefficients equation looks like with Units.

Here is how the Selectvity of Solute based on Activity Coefficients equation looks like.

1.7333Edit=4.16Edit1.6Edit1.8Edit1.2Edit
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Selectvity of Solute based on Activity Coefficients Solution

Follow our step by step solution on how to calculate Selectvity of Solute based on Activity Coefficients?

FIRST Step Consider the formula
βC, A=ΥcRΥcEΥaRΥaE
Next Step Substitute values of Variables
βC, A=4.161.61.81.2
Next Step Prepare to Evaluate
βC, A=4.161.61.81.2
Next Step Evaluate
βC, A=1.73333333333333
LAST Step Rounding Answer
βC, A=1.7333

Selectvity of Solute based on Activity Coefficients Formula Elements

Variables
Selectivity
The Selectivity or Separation Factor is defined as the preferential uptake of the solute by the solvent over the carrier.
Symbol: βC, A
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Activity Coefficient of Solute in Raffinate
The Activity Coefficient of Solute in Raffinate is defined as the ratio of the chemical activity of the solute to its molar concentration in the Raffinate.
Symbol: ΥcR
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Activity Coefficient of Solute in Extract
The Activity Coefficient of Solute in Extract is defined as the ratio of the chemical activity of the solute to its molar concentration in the Extract.
Symbol: ΥcE
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Activity Coefficient of Carrier Liq in Raffinate
The Activity Coefficient of Carrier Liq in Raffinate is defined as the ratio of the chemical activity of the Carrier Liquid to its molar concentration in the Raffinate.
Symbol: ΥaR
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Activity Coefficient of Carrier Liquid in Extract
The Activity Coefficient of Carrier Liquid in Extract is defined as the ratio of the chemical activity of the Carrier Liquid to its molar concentration in the Extract.
Symbol: ΥaE
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.

Other Formulas to find Selectivity

​Go Selectivity of Solute based on Distribution Coefficients
βC, A=KSoluteKCarrierLiq
​Go Selectvity of Solute based on Mole Fractions
βC, A=yCyAxCxA

Other formulas in Distribution Coefficient, Selectivity and Mass Ratio category

​Go Distribution Coefficient of Carrier Liquid from Activity Coefficients
KCarrierLiq=ΥaRΥaE
​Go Distribution Coefficient of Carrier Liquid from Mass Fraction
KCarrierLiq=yAxA
​Go Distribution Coefficient of Solute from Activity Coefficient
KSolute=ΥcRΥcE
​Go Distribution Coefficient of Solute from Mass Fractions
KSolute=yCxC

How to Evaluate Selectvity of Solute based on Activity Coefficients?

Selectvity of Solute based on Activity Coefficients evaluator uses Selectivity = (Activity Coefficient of Solute in Raffinate/Activity Coefficient of Solute in Extract)/(Activity Coefficient of Carrier Liq in Raffinate/Activity Coefficient of Carrier Liquid in Extract) to evaluate the Selectivity, The Selectvity of Solute based on Activity Coefficients formula is defined as the ratio of activity coefficiens of solute in raffinate to carrier liquid raffinate to that of the solute in extract to carrier liquid in extract. Selectivity is denoted by βC, A symbol.

How to evaluate Selectvity of Solute based on Activity Coefficients using this online evaluator? To use this online evaluator for Selectvity of Solute based on Activity Coefficients, enter Activity Coefficient of Solute in Raffinate (ΥcR), Activity Coefficient of Solute in Extract (ΥcE), Activity Coefficient of Carrier Liq in Raffinate (ΥaR) & Activity Coefficient of Carrier Liquid in Extract (ΥaE) and hit the calculate button.

FAQs on Selectvity of Solute based on Activity Coefficients

What is the formula to find Selectvity of Solute based on Activity Coefficients?
The formula of Selectvity of Solute based on Activity Coefficients is expressed as Selectivity = (Activity Coefficient of Solute in Raffinate/Activity Coefficient of Solute in Extract)/(Activity Coefficient of Carrier Liq in Raffinate/Activity Coefficient of Carrier Liquid in Extract). Here is an example- 1.733333 = (4.16/1.6)/(1.8/1.2).
How to calculate Selectvity of Solute based on Activity Coefficients?
With Activity Coefficient of Solute in Raffinate (ΥcR), Activity Coefficient of Solute in Extract (ΥcE), Activity Coefficient of Carrier Liq in Raffinate (ΥaR) & Activity Coefficient of Carrier Liquid in Extract (ΥaE) we can find Selectvity of Solute based on Activity Coefficients using the formula - Selectivity = (Activity Coefficient of Solute in Raffinate/Activity Coefficient of Solute in Extract)/(Activity Coefficient of Carrier Liq in Raffinate/Activity Coefficient of Carrier Liquid in Extract).
What are the other ways to Calculate Selectivity?
Here are the different ways to Calculate Selectivity-
  • Selectivity=Distribution Coefficient of Solute/Distribution Coefficient of Carrier LiquidOpenImg
  • Selectivity=(Mass Fraction of Solute in the Extract/Mass Fraction of Carrier Liquid in the Extract)/(Mass Fraction of Solute in the Raffinate/Mass Fraction of Carrier Liquid in the Raffinate)OpenImg
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