Ishan Gupta
Birla Institute of Technology & Science (BITS), Pilani
Ishan Gupta has created this Calculator and 50+ more calculators!

## < 1 Other formulas that you can solve using the same Inputs

Partial Pressure (using Raoult's Law)
Vapor Pressure of component A=Mole fraction of component A in liquid phase*Vapor Pressure of pure component A GO

### Relative Volatility Formula

Relative Volatility= if(Vapor Pressure of component A/Mole fraction of component A in liquid phase>Vapor Pressure of component B/Mole fraction of component B in liquid phase) { Relative Volatility=Mole fraction of component A in vapor phase*(1-Mole fraction of component A in liquid phase)/(Mole fraction of component A in liquid phase*(1-Mole fraction of component A in vapor phase)) } else { Relative Volatility=Mole fraction of component B in vapor phase*(1-Mole fraction of component B in liquid phase)/(Mole fraction of component B in liquid phase*(1-Mole fraction of component B in vapor phase)) }
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Sphericity of a particle GO
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Number of Particles GO
Total Surface Area of Particles GO
Sphericity of a cuboidal particle GO
Energy Required to Crush Coarse Materials according to Bond's Law GO
Heat Transfer Through Plane Wall or Surface GO
Critical Radius of Insulation of a Sphere GO
Critical Radius of Insulation of a Cylinder GO
Emmisive power of a body (Radiation) GO
Number of Transfer Units in a Heat Exchanger GO
Log Mean Temperature Difference for CoCurrent Flow GO
Log Mean Temperature Difference for Counter Current Flow GO
Heat Exchanger Effectiveness GO
Heat Transfer in a Heat Exchanger using overall heat transfer coefficient GO
Heat Transfer in a Heat Exchanger using cold fluid properties GO
Heat Transfer in a Heat Exchanger using hot fluid properties GO
Reynolds Number for Circular Tubes GO
Reynolds Number for Non-Circular Tubes GO
Prandtl Number GO
Nusselt Number for Transitional and Rough Flow in Circular Tube GO
Stanton Number (using dimensionless numbers) GO
Stanton Number (using basic fluid properties) GO
Concentration of the reactant in zero-order reaction GO
Concentration of the reactant in first-order reaction GO
Concentration of the reactant in second-order reaction (only one reactant) GO
Partial Pressure (using Raoult's Law) GO
Thermal Diffusivity GO
Momentum Diffusivity GO
Prandtl Number (using diffusivities) GO
Initial concentration of reactants in the feed GO
Molar Feed Rate of Reactants GO
Volumetric flow rate of feed GO
Space time of the reactor GO
Space velocity of a reactor GO
Conversion of Reactant A (batch) GO
Molar flow rate at which reactant A leaves the system GO
Conversion of Reactant A (flow) GO
Batch Reactor: Number of Moles Remaining (of reactant A) GO
Height of capillary rise/fall GO
Hydrostatic Force on Plane Submerged Surface GO
Hydrostatic Force on Curved Submerged Surface GO
Head Loss due to friction GO
Fanning friction factor GO
Radial Heat flowing through a cylinder GO

## What is 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.

## How to Calculate Relative Volatility?

Relative Volatility calculator uses Relative Volatility= if(Vapor Pressure of component A/Mole fraction of component A in liquid phase>Vapor Pressure of component B/Mole fraction of component B in liquid phase) { Relative Volatility=Mole fraction of component A in vapor phase*(1-Mole fraction of component A in liquid phase)/(Mole fraction of component A in liquid phase*(1-Mole fraction of component A in vapor phase)) } else { Relative Volatility=Mole fraction of component B in vapor phase*(1-Mole fraction of component B in liquid phase)/(Mole fraction of component B in liquid phase*(1-Mole fraction of component B in vapor phase)) } to calculate the 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. In effect, it indicates the ease or difficulty of using distillation to separate the more volatile components from the less volatile components in a mixture. By convention, relative volatility is usually denoted as α. Relative Volatility and is denoted by α symbol.

How to calculate Relative Volatility using this online calculator? To use this online calculator for Relative Volatility, enter Vapor Pressure of component A (PA), Vapor Pressure of component B (PBo), Mole fraction of component A in liquid phase (xA<), Mole fraction of component B in liquid phase (xB<), Mole fraction of component B in vapor phase (yB<) and Mole fraction of component A in vapor phase (yA<) and hit the calculate button. Here is how the Relative Volatility calculation can be explained with given input values -> 36 = if(0.1/0.1>0.1/0.9) { 0.8*(1-0.1)/(0.1*(1-0.8)) } else { 0.2*(1-0.9)/(0.9*(1-0.2)) } .

### FAQ

What is 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. In effect, it indicates the ease or difficulty of using distillation to separate the more volatile components from the less volatile components in a mixture. By convention, relative volatility is usually denoted as α and is represented as α= if(PA/xA<>PBo/xB<) { α=yA<*(1-xA<)/(xA<*(1-yA<)) } else { α=yB<*(1-xB<)/(xB<*(1-yB<)) } or Relative Volatility= if(Vapor Pressure of component A/Mole fraction of component A in liquid phase>Vapor Pressure of component B/Mole fraction of component B in liquid phase) { Relative Volatility=Mole fraction of component A in vapor phase*(1-Mole fraction of component A in liquid phase)/(Mole fraction of component A in liquid phase*(1-Mole fraction of component A in vapor phase)) } else { Relative Volatility=Mole fraction of component B in vapor phase*(1-Mole fraction of component B in liquid phase)/(Mole fraction of component B in liquid phase*(1-Mole fraction of component B in vapor phase)) } . Vapor pressure of component A or equilibrium vapor pressure is defined as the pressure exerted by A's vapor in thermodynamic equilibrium with its condensed phases (solid or liquid) at a given temperature in a closed system, Vapor pressure of component B or equilibrium vapor pressure is defined as the pressure exerted by B's vapor in thermodynamic equilibrium with its condensed phases (solid or liquid) at a given temperature in a closed system, The mole fraction of component A in liquid phase refers to the mole fraction of component A in the liquid phase, The mole fraction of component B in liquid phase refers to the mole fraction of component B in the liquid phase, The mole fraction of component B in vapor phase refers to the mole fraction of component B in the vapor phase and The mole fraction of component A in vapor phase refers to the mole fraction of component A in the vapor phase.
How to calculate 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. In effect, it indicates the ease or difficulty of using distillation to separate the more volatile components from the less volatile components in a mixture. By convention, relative volatility is usually denoted as α is calculated using Relative Volatility= if(Vapor Pressure of component A/Mole fraction of component A in liquid phase>Vapor Pressure of component B/Mole fraction of component B in liquid phase) { Relative Volatility=Mole fraction of component A in vapor phase*(1-Mole fraction of component A in liquid phase)/(Mole fraction of component A in liquid phase*(1-Mole fraction of component A in vapor phase)) } else { Relative Volatility=Mole fraction of component B in vapor phase*(1-Mole fraction of component B in liquid phase)/(Mole fraction of component B in liquid phase*(1-Mole fraction of component B in vapor phase)) } . To calculate Relative Volatility, you need Vapor Pressure of component A (PA), Vapor Pressure of component B (PBo), Mole fraction of component A in liquid phase (xA<), Mole fraction of component B in liquid phase (xB<), Mole fraction of component B in vapor phase (yB<) and Mole fraction of component A in vapor phase (yA<). With our tool, you need to enter the respective value for Vapor Pressure of component A, Vapor Pressure of component B, Mole fraction of component A in liquid phase, Mole fraction of component B in liquid phase, Mole fraction of component B in vapor phase and Mole fraction of component A in vapor phase and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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