Van Der Waals Interaction Energy Calculator

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BET Adsorption Isotherm

Capillarity and Surface Forces in Liquids (Curved Surfaces)

Colloidal Structures in Surfactant Solutions

Freundlich adsorption isotherm

Important Formulas of Adsorption Isotherm

Important Formulas of Colloids

Important Formulas on Surface Tension

Langmuir Adsorption Isotherm

✖Hamaker coefficient A can be defined for a Van der Waals body–body interaction.ⓘ Hamaker Coefficient [A]			+10% -10%
✖Surface separation is the distance between two surfaces.ⓘ Surface Separation [h]			+10% -10%

✖Van der Waals Interaction Energy include attraction and repulsions between atoms, molecules, and surfaces, as well as other intermolecular forces.ⓘ Van Der Waals Interaction Energy [U_VWaals]

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Formula

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Van Der Waals Interaction Energy

Formula

`"U"_{"VWaals"} = -("A")/(12*pi*("h")^2)`

Example

`"-8.3E^-27J"=-("3.2E^-21J")/(12*pi*("101m")^2)`

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Van Der Waals Interaction Energy Solution

STEP 0: Pre-Calculation Summary

Formula Used

Van der Waals Interaction Energy = -(Hamaker Coefficient)/(12*pi*(Surface Separation)^2)
U_VWaals = -(A)/(12*pi*(h)^2)
This formula uses 1 Constants, 3 Variables

Constants Used

pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288

Variables Used

Van der Waals Interaction Energy - (Measured in Joule) - Van der Waals Interaction Energy include attraction and repulsions between atoms, molecules, and surfaces, as well as other intermolecular forces.
Hamaker Coefficient - (Measured in Joule) - Hamaker coefficient A can be defined for a Van der Waals body–body interaction.
Surface Separation - (Measured in Meter) - Surface separation is the distance between two surfaces.

STEP 1: Convert Input(s) to Base Unit

Hamaker Coefficient: 3.2E-21 Joule --> 3.2E-21 Joule No Conversion Required
Surface Separation: 101 Meter --> 101 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

U_VWaals = -(A)/(12*pi*(h)^2) --> -(3.2E-21)/(12*pi*(101)^2)

Evaluating ... ...

U_VWaals = -8.32101130435031E-27

STEP 3: Convert Result to Output's Unit

-8.32101130435031E-27 Joule --> No Conversion Required

FINAL ANSWER

-8.32101130435031E-27 ≈ -8.3E-27 Joule <-- Van der Waals Interaction Energy

(Calculation completed in 00.006 seconds)

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Amity Institute Of Applied Sciences (AIAS, Amity University), Noida, India

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Van Der Waals Interaction Energy

Go Van der Waals Interaction Energy = -(Hamaker Coefficient)/(12*pi*(Surface Separation)^2)

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Van Der Waals Interaction Energy

Go Van der Waals Interaction Energy = -(Hamaker Coefficient)/(12*pi*(Surface Separation)^2)

Van Der Waals Interaction Energy Formula

Van der Waals Interaction Energy = -(Hamaker Coefficient)/(12*pi*(Surface Separation)^2)
U_VWaals = -(A)/(12*pi*(h)^2)

What is Van Der Waals Interaction Energy?

Van Der Waals Interaction Energy is the repulsive interaction energy where the force acts between two colloidal particles having a surface separation.

What is DLVO theory?

The DLVO theory explains the aggregation of aqueous dispersions quantitatively and describes the force between charged surfaces interacting through a liquid medium. It combines the effects of the van der Waals attraction and the electrostatic repulsion due to the so-called double layer of counterions.

How to Calculate Van Der Waals Interaction Energy?

Van Der Waals Interaction Energy calculator uses Van der Waals Interaction Energy = -(Hamaker Coefficient)/(12*pi*(Surface Separation)^2) to calculate the Van der Waals Interaction Energy, The Van Der Waals Interaction Energy formula is defined as van der Waals interaction energy per unit area. Van der Waals Interaction Energy is denoted by U_VWaals symbol.

How to calculate Van Der Waals Interaction Energy using this online calculator? To use this online calculator for Van Der Waals Interaction Energy, enter Hamaker Coefficient (A) & Surface Separation (h) and hit the calculate button. Here is how the Van Der Waals Interaction Energy calculation can be explained with given input values -> -8.3E-27 = -(3.2E-21)/(12*pi*(101)^2).

FAQ

What is Van Der Waals Interaction Energy?

The Van Der Waals Interaction Energy formula is defined as van der Waals interaction energy per unit area and is represented as U_VWaals = -(A)/(12*pi*(h)^2) or Van der Waals Interaction Energy = -(Hamaker Coefficient)/(12*pi*(Surface Separation)^2). Hamaker coefficient A can be defined for a Van der Waals body–body interaction & Surface separation is the distance between two surfaces.

How to calculate Van Der Waals Interaction Energy?

The Van Der Waals Interaction Energy formula is defined as van der Waals interaction energy per unit area is calculated using Van der Waals Interaction Energy = -(Hamaker Coefficient)/(12*pi*(Surface Separation)^2). To calculate Van Der Waals Interaction Energy, you need Hamaker Coefficient (A) & Surface Separation (h). With our tool, you need to enter the respective value for Hamaker Coefficient & Surface Separation 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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