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Viscosity Index Mixture Formula

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Viscosity Index is defined as a measure of how much a fluid's viscosity changes with temperature. Check FAQs

VI = (\frac{L - U}{L - H}) \cdot 100

VI - Viscosity Index?L - Aromatic's Viscosity?U - Lube Oil Viscosity?H - Paraffinic Viscosity?

Viscosity Index Mixture Example

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Here is how the Viscosity Index Mixture equation looks like with Values.

Here is how the Viscosity Index Mixture equation looks like with Units.

Here is how the Viscosity Index Mixture equation looks like.

99.588 = (\frac{711.24 - 310}{711.24 - 308.34}) \cdot 100

99.588 = (\frac{711.24cSt - 310cSt}{711.24cSt - 308.34cSt}) \cdot 100

99.588 = (\frac{711.24 - 310}{711.24 - 308.34}) \cdot 100

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Viscosity Index Mixture Solution

Follow our step by step solution on how to calculate Viscosity Index Mixture?

FIRST Step Consider the formula

VI = (\frac{L - U}{L - H}) \cdot 100

Next Step Substitute values of Variables

∴

VI = (\frac{711.24cSt - 310cSt}{711.24cSt - 308.34cSt}) \cdot 100

Next Step Prepare to Evaluate

∴

VI = (\frac{711.24 - 310}{711.24 - 308.34}) \cdot 100

Next Step Evaluate

∴

VI = 99.5879870935716

LAST Step Rounding Answer

∴

VI = 99.588

Viscosity Index Mixture Formula Elements

Variables

Viscosity Index

Viscosity Index is defined as a measure of how much a fluid's viscosity changes with temperature.

Symbol: VI

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Viscosity Index

Aromatic's Viscosity

Aromatic's Viscosity is defined as the measure of a fluid's resistance to flow.

Symbol: L

Measurement: Kinematic ViscosityUnit: cSt

Note: Value should be greater than 0.

Formulas to find Aromatic's Viscosity

Lube Oil Viscosity

Lube Oil Viscosity is defined as the measure of a resistance of one lube oil layer over another adjacent lube oil layer.

Symbol: U

Measurement: Kinematic ViscosityUnit: cSt

Note: Value should be greater than 0.

Formulas to find Lube Oil Viscosity

Paraffinic Viscosity

Paraffinic Viscosity is defined as the measure of internal friction between the layers of paraffinic fluid.

Symbol: H

Measurement: Kinematic ViscosityUnit: cSt

Note: Value should be greater than 0.

Formulas to find Paraffinic Viscosity

Other formulas in Basics of Petrochemicals category

Go API Gravity

°API = (\frac{141.5}{SG}) - 131.5

Go Aniline Point

AP = \frac{DI \cdot 100}{°API}

Go Saybolt Method Viscosity

v = (0.219 \cdot t) - (\frac{149.7}{t})

Go Diesel Index

DI = °API \cdot (\frac{AP}{100})

How to Evaluate Viscosity Index Mixture?

Viscosity Index Mixture evaluator uses Viscosity Index = ((Aromatic's Viscosity-Lube Oil Viscosity)/(Aromatic's Viscosity-Paraffinic Viscosity))*100 to evaluate the Viscosity Index, Viscosity Index Mixture is defined as a measure of how much a fluid's viscosity changes with temperature. Viscosity Index is denoted by VI symbol.

How to evaluate Viscosity Index Mixture using this online evaluator? To use this online evaluator for Viscosity Index Mixture, enter Aromatic's Viscosity (L), Lube Oil Viscosity (U) & Paraffinic Viscosity (H) and hit the calculate button.

FAQs on Viscosity Index Mixture

What is the formula to find Viscosity Index Mixture?

The formula of Viscosity Index Mixture is expressed as Viscosity Index = ((Aromatic's Viscosity-Lube Oil Viscosity)/(Aromatic's Viscosity-Paraffinic Viscosity))*100. Here is an example- 100 = ((711.24-0.00031)/(711.24-0.00030834))*100.

How to calculate Viscosity Index Mixture?

With Aromatic's Viscosity (L), Lube Oil Viscosity (U) & Paraffinic Viscosity (H) we can find Viscosity Index Mixture using the formula - Viscosity Index = ((Aromatic's Viscosity-Lube Oil Viscosity)/(Aromatic's Viscosity-Paraffinic Viscosity))*100.

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Viscosity Index Mixture Formula

Viscosity Index Mixture Example

Viscosity Index Mixture Solution

Viscosity Index Mixture Formula Elements

Other formulas in Basics of Petrochemicals category

How to Evaluate Viscosity Index Mixture?

FAQs on Viscosity Index Mixture

Variable Name