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Log Mean Driving Force Based on Mole Fraction Formula

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Log Mean Driving Force represents the effective driving force for mass transfer in these processes. Check FAQs

Δy lm = \frac{y 1 - y 2}{\ln (\frac{y 1 - y e}{y 2 - y e})}

Δy_lm - Log Mean Driving Force?y₁ - Solute Gas Mole Fraction?y₂ - Solute Gas Mole Fraction at Top?y_e - Gas Concentration at Equilibrium?

Log Mean Driving Force Based on Mole Fraction Example

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Here is how the Log Mean Driving Force Based on Mole Fraction equation looks like with Values.

Here is how the Log Mean Driving Force Based on Mole Fraction equation looks like with Units.

Here is how the Log Mean Driving Force Based on Mole Fraction equation looks like.

0.1599 = \frac{0.64 - 0.32}{\ln (\frac{0.64 - 0.27}{0.32 - 0.27})}

0.1599 = \frac{0.64 - 0.32}{\ln (\frac{0.64 - 0.27}{0.32 - 0.27})}

0.1599 = \frac{0.64 - 0.32}{\ln (\frac{0.64 - 0.27}{0.32 - 0.27})}

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Log Mean Driving Force Based on Mole Fraction Solution

Follow our step by step solution on how to calculate Log Mean Driving Force Based on Mole Fraction?

FIRST Step Consider the formula

Δy lm = \frac{y 1 - y 2}{\ln (\frac{y 1 - y e}{y 2 - y e})}

Next Step Substitute values of Variables

∴

Δy lm = \frac{0.64 - 0.32}{\ln (\frac{0.64 - 0.27}{0.32 - 0.27})}

Next Step Prepare to Evaluate

∴

Δy lm = \frac{0.64 - 0.32}{\ln (\frac{0.64 - 0.27}{0.32 - 0.27})}

Next Step Evaluate

∴

Δy lm = 0.159881687534427

LAST Step Rounding Answer

∴

Δy lm = 0.1599

Log Mean Driving Force Based on Mole Fraction Formula Elements

Variables

Functions

Log Mean Driving Force

Log Mean Driving Force represents the effective driving force for mass transfer in these processes.

Symbol: Δy_lm

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Log Mean Driving Force

Solute Gas Mole Fraction

Solute Gas Mole Fraction represents the mole fraction of the solute gas in the bottom of the column.

Symbol: y₁

Measurement: NAUnit: Unitless

Note: Value should be less than 1.

Formulas to find Solute Gas Mole Fraction

Solute Gas Mole Fraction at Top

Solute Gas Mole Fraction at Top represents the mole fraction of the solute gas in the top most section of column.

Symbol: y₂

Measurement: NAUnit: Unitless

Note: Value should be less than 1.

Formulas to find Solute Gas Mole Fraction at Top

Gas Concentration at Equilibrium

Gas Concentration at Equilibrium represents the mole fraction of solute gas that could be in equilibrium with the liquid concentration at any point.

Symbol: y_e

Measurement: NAUnit: Unitless

Note: Value should be less than 1.

Formulas to find Gas Concentration at Equilibrium

The natural logarithm, also known as the logarithm to the base e, is the inverse function of the natural exponential function.

Syntax: ln(Number)

Other formulas in Packed Column Designing category

Go Effective Interfacial Area of Packing using Onda's Method

a W = a \cdot (1 - \exp ((- 1.45 \cdot ({(\frac{σ c}{σ L})}^{0.75}) \cdot {(\frac{L W}{a \cdot μ L})}^{0.1}) \cdot {(\frac{{(L W)}^{2} \cdot a}{{(ρ L)}^{2} \cdot [g]})}^{- 0.05}) \cdot {(\frac{{L W}^{2}}{ρ L \cdot a \cdot σ L})}^{0.2})

Go Height of Overall Gas Phase Transfer Unit in Packed Column

H OG = \frac{G m}{K G \cdot a \cdot P}

Go Liquid Mass Film Coefficient in Packed Columns

K L = 0.0051 \cdot ({(L W \cdot \frac{V P}{a W \cdot μ L})}^{\frac{2}{3}}) \cdot ({(\frac{μ L}{ρ L \cdot D c})}^{- \frac{1}{2}}) \cdot ({(a \cdot \frac{d p}{V P})}^{0.4}) \cdot {(\frac{μ L \cdot [g]}{ρ L})}^{\frac{1}{3}}

Go Number of Transfer Units for Dilute System in Packed Column

N og = \frac{y 1 - y 2}{Δy lm}

How to Evaluate Log Mean Driving Force Based on Mole Fraction?

Log Mean Driving Force Based on Mole Fraction evaluator uses Log Mean Driving Force = (Solute Gas Mole Fraction-Solute Gas Mole Fraction at Top)/(ln((Solute Gas Mole Fraction-Gas Concentration at Equilibrium)/(Solute Gas Mole Fraction at Top-Gas Concentration at Equilibrium))) to evaluate the Log Mean Driving Force, The Log Mean Driving Force Based on Mole Fraction formula is an effective means to quantify the driving force for mass transfer in the absorption column. Log Mean Driving Force is denoted by Δy_lm symbol.

How to evaluate Log Mean Driving Force Based on Mole Fraction using this online evaluator? To use this online evaluator for Log Mean Driving Force Based on Mole Fraction, enter Solute Gas Mole Fraction (y₁), Solute Gas Mole Fraction at Top (y₂) & Gas Concentration at Equilibrium (y_e) and hit the calculate button.

FAQs on Log Mean Driving Force Based on Mole Fraction

What is the formula to find Log Mean Driving Force Based on Mole Fraction?

The formula of Log Mean Driving Force Based on Mole Fraction is expressed as Log Mean Driving Force = (Solute Gas Mole Fraction-Solute Gas Mole Fraction at Top)/(ln((Solute Gas Mole Fraction-Gas Concentration at Equilibrium)/(Solute Gas Mole Fraction at Top-Gas Concentration at Equilibrium))). Here is an example- 0.159882 = (0.64-0.32)/(ln((0.64-0.27)/(0.32-0.27))).

How to calculate Log Mean Driving Force Based on Mole Fraction?

With Solute Gas Mole Fraction (y₁), Solute Gas Mole Fraction at Top (y₂) & Gas Concentration at Equilibrium (y_e) we can find Log Mean Driving Force Based on Mole Fraction using the formula - Log Mean Driving Force = (Solute Gas Mole Fraction-Solute Gas Mole Fraction at Top)/(ln((Solute Gas Mole Fraction-Gas Concentration at Equilibrium)/(Solute Gas Mole Fraction at Top-Gas Concentration at Equilibrium))). This formula also uses Natural Logarithm (ln) function(s).

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Log Mean Driving Force Based on Mole Fraction Formula

Log Mean Driving Force Based on Mole Fraction Example

Log Mean Driving Force Based on Mole Fraction Solution

Log Mean Driving Force Based on Mole Fraction Formula Elements

Other formulas in Packed Column Designing category

How to Evaluate Log Mean Driving Force Based on Mole Fraction?

FAQs on Log Mean Driving Force Based on Mole Fraction

Variable Name