Relative Volatility using Mole Fraction Calculator

✖The Mole Fraction of Component in Vapor Phase can be defined as the ratio of the number of moles a component to the total number of moles of components present in the vapor phase.ⓘ Mole Fraction of Component in Vapor Phase [y_Gas]			+10% -10%
✖The Mole Fraction of Component in Liquid Phase can be defined as the ratio of the number of moles a component to the total number of moles of components present in the liquid phase.ⓘ Mole Fraction of Component in Liquid Phase [x_Liquid]			+10% -10%

✖Relative Volatility is a measure comparing the vapor pressures of the components in a liquid mixture of chemicals. This quantity is widely used in designing large industrial distillation processes.ⓘ Relative Volatility using Mole Fraction [α]

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Formula

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Relative Volatility using Mole Fraction

Formula

α = \frac{\frac{y Gas}{1 - y Gas}}{\frac{x Liquid}{1 - x Liquid}}

Example

0.411765 = \frac{\frac{0.3}{1 - 0.3}}{\frac{0.51}{1 - 0.51}}

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Relative Volatility using Mole Fraction Solution

STEP 0: Pre-Calculation Summary

Formula Used

Relative Volatility = (Mole Fraction of Component in Vapor Phase/(1-Mole Fraction of Component in Vapor Phase))/(Mole Fraction of Component in Liquid Phase/(1-Mole Fraction of Component in Liquid Phase))
α = (y_Gas/(1-y_Gas))/(x_Liquid/(1-x_Liquid))
This formula uses 3 Variables

Variables Used

Relative Volatility - Relative Volatility is a measure comparing the vapor pressures of the components in a liquid mixture of chemicals. This quantity is widely used in designing large industrial distillation processes.
Mole Fraction of Component in Vapor Phase - The Mole Fraction of Component in Vapor Phase can be defined as the ratio of the number of moles a component to the total number of moles of components present in the vapor phase.
Mole Fraction of Component in Liquid Phase - The Mole Fraction of Component in Liquid Phase can be defined as the ratio of the number of moles a component to the total number of moles of components present in the liquid phase.

STEP 1: Convert Input(s) to Base Unit

Mole Fraction of Component in Vapor Phase: 0.3 --> No Conversion Required
Mole Fraction of Component in Liquid Phase: 0.51 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

α = (y_Gas/(1-y_Gas))/(x_Liquid/(1-x_Liquid)) --> (0.3/(1-0.3))/(0.51/(1-0.51))

Evaluating ... ...

α = 0.411764705882353

STEP 3: Convert Result to Output's Unit

0.411764705882353 --> No Conversion Required

FINAL ANSWER

0.411764705882353 ≈ 0.411765 <-- Relative Volatility

(Calculation completed in 00.004 seconds)

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University School of Chemical Technology-USCT (GGSIPU), New Delhi

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< Relative Volatility and Vaporization Ratio Calculators

Relative Volatility using Mole Fraction

Go Relative Volatility = (Mole Fraction of Component in Vapor Phase/(1-Mole Fraction of Component in Vapor Phase))/(Mole Fraction of Component in Liquid Phase/(1-Mole Fraction of Component in Liquid Phase))

Total Pressure using Mole Fraction and Saturated Pressure

Go Total Pressure of Gas = (Mole Fraction of MVC in Liq Phase*Partial Pressure of More Volatile Component)+((1-Mole Fraction of MVC in Liq Phase)*Partial Pressure of Less Volatile Component)

Relative Volatility using Vapour Pressure

Go Relative Volatility = Saturated Vapour Pressure of More Volatile Comp/Saturated Vapour Pressure of Less Volatile Comp

Equilibrium Vaporization Ratio for More Volatile Component

Go Equilibrium Vaporization Ratio of MVC = Mole Fraction of MVC in Vapor Phase/Mole Fraction of MVC in Liquid Phase

< Important Formulas in Distillation Mass Transfer Operation Calculators

Feed Q-Value in Distillation Column

Go Q-value in Mass Transfer = Heat Required to Convert Feed to Saturated Vapor/Molal Latent Heat of Vaporization of Saturated Liq

External Reflux Ratio

Go External Reflux Ratio = External Reflux Flowrate to Distillation Column/Distillate Flowrate from Distillation Column

Internal Reflux Ratio

Go Internal Reflux Ratio = Internal Reflux Flowrate to Distillation Column/Distillate Flowrate from Distillation Column

Boil-Up Ratio

Go Boil-Up Ratio = Boil-Up Flowrate to the Distillation Column/Residue Flowrate from Distillation Column

Relative Volatility using Mole Fraction Formula

What is Relative Volatility?

Relative volatility is a measure comparing the vapor pressures of the components in a liquid mixture of chemicals. It indicates the ease or difficulty of using distillation to separate the more volatile components from the less volatile components in a mixture.

What is Mass Transfer?

Mass transfer is a transport of components under a chemical potential gradient. The component moves to the direction of reducing concentration gradient. The transport occurs from a region of higher concentration to lower concentration.

How to Calculate Relative Volatility using Mole Fraction?

Relative Volatility using Mole Fraction calculator uses Relative Volatility = (Mole Fraction of Component in Vapor Phase/(1-Mole Fraction of Component in Vapor Phase))/(Mole Fraction of Component in Liquid Phase/(1-Mole Fraction of Component in Liquid Phase)) to calculate the Relative Volatility, The Relative volatility using mole fraction formula is used to indicate the ease or difficulty of using distillation to separate the components from the mixture. Relative Volatility is denoted by α symbol.

How to calculate Relative Volatility using Mole Fraction using this online calculator? To use this online calculator for Relative Volatility using Mole Fraction, enter Mole Fraction of Component in Vapor Phase (y_Gas) & Mole Fraction of Component in Liquid Phase (x_Liquid) and hit the calculate button. Here is how the Relative Volatility using Mole Fraction calculation can be explained with given input values -> 0.667664 = (0.3/(1-0.3))/(0.51/(1-0.51)).

FAQ

What is Relative Volatility using Mole Fraction?

The Relative volatility using mole fraction formula is used to indicate the ease or difficulty of using distillation to separate the components from the mixture and is represented as α = (y_Gas/(1-y_Gas))/(x_Liquid/(1-x_Liquid)) or Relative Volatility = (Mole Fraction of Component in Vapor Phase/(1-Mole Fraction of Component in Vapor Phase))/(Mole Fraction of Component in Liquid Phase/(1-Mole Fraction of Component in Liquid Phase)). The Mole Fraction of Component in Vapor Phase can be defined as the ratio of the number of moles a component to the total number of moles of components present in the vapor phase & The Mole Fraction of Component in Liquid Phase can be defined as the ratio of the number of moles a component to the total number of moles of components present in the liquid phase.

How to calculate Relative Volatility using Mole Fraction?

The Relative volatility using mole fraction formula is used to indicate the ease or difficulty of using distillation to separate the components from the mixture is calculated using Relative Volatility = (Mole Fraction of Component in Vapor Phase/(1-Mole Fraction of Component in Vapor Phase))/(Mole Fraction of Component in Liquid Phase/(1-Mole Fraction of Component in Liquid Phase)). To calculate Relative Volatility using Mole Fraction, you need Mole Fraction of Component in Vapor Phase (y_Gas) & Mole Fraction of Component in Liquid Phase (x_Liquid). With our tool, you need to enter the respective value for Mole Fraction of Component in Vapor Phase & Mole Fraction of Component in Liquid Phase and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Relative Volatility?

In this formula, Relative Volatility uses Mole Fraction of Component in Vapor Phase & Mole Fraction of Component in Liquid Phase. We can use 3 other way(s) to calculate the same, which is/are as follows -

Relative Volatility = Saturated Vapour Pressure of More Volatile Comp/Saturated Vapour Pressure of Less Volatile Comp
Relative Volatility = Equilibrium Vaporization Ratio of MVC/Equilibrium Vaporization Ratio of LVC
Relative Volatility = Equilibrium Vaporization Ratio of MVC/Equilibrium Vaporization Ratio of LVC

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