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Contact Angle Hysteresis Formula

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Contact Angle Hysteresis is a reflection of the activation energy required for the movement of a droplet from one metastable state to another on a surface. Check FAQs

H = θ a - θ r

H - Contact Angle Hysteresis?θ_a - Advancing Contact Angle?θ_r - Receding Contact Angle?

Contact Angle Hysteresis Example

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Here is how the Contact Angle Hysteresis equation looks like with Values.

Here is how the Contact Angle Hysteresis equation looks like with Units.

Here is how the Contact Angle Hysteresis equation looks like.

7 = 28 - 21

7° = 28° - 21°

7 = 28 - 21

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Contact Angle Hysteresis Solution

Follow our step by step solution on how to calculate Contact Angle Hysteresis?

FIRST Step Consider the formula

H = θ a - θ r

Next Step Substitute values of Variables

∴

H = 28° - 21°

Next Step Convert Units

∴

H = 0.4887rad - 0.3665rad

Next Step Prepare to Evaluate

∴

H = 0.4887 - 0.3665

Next Step Evaluate

∴

H = 0.12217304763958rad

LAST Step Convert to Output's Unit

∴

H = 7°

Contact Angle Hysteresis Formula Elements

Variables

Contact Angle Hysteresis

Contact Angle Hysteresis is a reflection of the activation energy required for the movement of a droplet from one metastable state to another on a surface.

Symbol: H

Measurement: AngleUnit: °

Note: Value can be positive or negative.

Formulas to find Contact Angle Hysteresis

Advancing Contact Angle

Advancing Contact Angle is the advancing angle between a liquid and a solid is the contact angle that is produced in the course of a wetting process.

Symbol: θ_a

Measurement: AngleUnit: °

Note: Value can be positive or negative.

Formulas to find Advancing Contact Angle

Receding Contact Angle

Receding Contact Angle is the contact angle between a liquid and a solid which has already been wetted with the liquid and which is in the course of being de-wetted.

Symbol: θ_r

Measurement: AngleUnit: °

Note: Value can be positive or negative.

Formulas to find Receding Contact Angle

Other formulas in Laplace and Surface Pressure category

Go Laplace Pressure of Bubbles or Droplets using Young Laplace Equation

ΔP b = \frac{σ \cdot 2}{R c}

Go Laplace Pressure of Curved Surface using Young-Laplace Equation

ΔP y = σ \cdot ((\frac{1}{R 1}) + (\frac{1}{R 2}))

Go Laplace Pressure

ΔP = P inside - P outside

Go Interfacial Tension by Laplace Equation

σ i = ΔP - (\frac{R 1 \cdot R 2}{R 1 + R 2})

How to Evaluate Contact Angle Hysteresis?

Contact Angle Hysteresis evaluator uses Contact Angle Hysteresis = Advancing Contact Angle-Receding Contact Angle to evaluate the Contact Angle Hysteresis, The Contact Angle Hysteresis formula is defined as the difference between the advancing and receding contact angles. Contact Angle Hysteresis is denoted by H symbol.

How to evaluate Contact Angle Hysteresis using this online evaluator? To use this online evaluator for Contact Angle Hysteresis, enter Advancing Contact Angle (θ_a) & Receding Contact Angle (θ_r) and hit the calculate button.

FAQs on Contact Angle Hysteresis

What is the formula to find Contact Angle Hysteresis?

The formula of Contact Angle Hysteresis is expressed as Contact Angle Hysteresis = Advancing Contact Angle-Receding Contact Angle. Here is an example- 401.0705 = 0.48869219055832-0.36651914291874.

How to calculate Contact Angle Hysteresis?

With Advancing Contact Angle (θ_a) & Receding Contact Angle (θ_r) we can find Contact Angle Hysteresis using the formula - Contact Angle Hysteresis = Advancing Contact Angle-Receding Contact Angle.

Can the Contact Angle Hysteresis be negative?

Yes, the Contact Angle Hysteresis, measured in Angle can be negative.

Which unit is used to measure Contact Angle Hysteresis?

Contact Angle Hysteresis is usually measured using the Degree[°] for Angle. Radian[°], Minute[°], Second[°] are the few other units in which Contact Angle Hysteresis can be measured.

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Contact Angle Hysteresis Formula

Contact Angle Hysteresis Example

Contact Angle Hysteresis Solution

Contact Angle Hysteresis Formula Elements

Other formulas in Laplace and Surface Pressure category

How to Evaluate Contact Angle Hysteresis?

FAQs on Contact Angle Hysteresis

Variable Name