The image above represents activation energy for heterogeneous nucleation. To calculate activation energy for heterogeneous nucleation, three essential parameters are needed and these parameters are **Solid – Liquid Interface (Î³ _{SL}),**Â

**Volume Free Energy (Î”G**and

_{v})**Function, S(Î¸)**.

**The formula for calculating activation energy for heterogenous nucleation:**

Î”G* = (^{16Ï€Î³SLÂ³}/_{3Î”GvÂ²})S(Î¸)

Where:

Î”G* = Activation Energy for Heterogeneous Nucleation

Î³_{SL} = Solid-Liquid Interface

Î”G_{v}Â = Volume Free Energy

S(Î¸) = Function

Let’s solve an example;

Find the activation energy for heterogenous nucleation when the solid – liquid interface is 12, the volume free energy is 6 and the function is 2.

This implies that;

Î³_{SL} = Solid Liquid Interface = 12

Î”G_{v} = Volume Free Energy = 6

S(Î¸) = Function = 2

Î”G* = (^{16Ï€Î³SLÂ³}/_{3Î”GvÂ²})S(Î¸)

That is, Î”G* = (^{16Ï€(12)Â³}/_{3(6)Â²})(2)

Î”G* = (^{16Ï€(1728)}/_{3(36)})(2)

Î”G* = (^{(86858.75)}/_{(108)})(2)

So, Î”G* = (804.24)(2)

Î”G* = 1608.49

Therefore, theÂ **activation energy for heterogenous nucleationÂ **isÂ **1608.49**

**How to Calculate Activation Energy for Heterogeneous Nucleation Using Nickzom Calculator**

Nickzom Calculator â€“Â **The Calculator Encyclopedia** is capable of calculating the activation energy for heterogenous nucleation.

To get the answer and workings of the activation energy for heterogenous nucleation using the **Nickzom Calculator â€“ The Calculator Encyclopedia.Â **First, you need to obtain the app.

You can get this app via any of these means:

**Web**Â â€“Â https://www.nickzom.org/calculator-plus

To get access to theÂ **professionalÂ **version via web, you need toÂ **register**Â andÂ **subscribeÂ **to have utter access to all functionalities.

You can also try theÂ **demoÂ **version viaÂ https://www.nickzom.org/calculator

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**Android (Paid)**Â â€“Â https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator

**Android (Free)**Â â€“Â https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator

**Apple (Paid)**Â â€“Â https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8

Once, you have obtained the calculator encyclopedia app, proceed to theÂ **Calculator Map,Â **then click onÂ **Materials and MetallurgicalÂ **underÂ **Engineering****.**

Now, Click onÂ **Phase Transformation****Â **underÂ **Materials and Metallurgical**

Now, Click on **Activation Energy for Heterogenous Nucleation****Â **underÂ **Phase Transformation**

The screenshot below displays the page or activity to enter your values, to get the answer for the activation energy for heterogenous nucleation according to the respective parameter which is the **Solid – Liquid Interface (Î³ _{SL}),**Â

**Volume Free Energy (Î”G**and

_{v})**Function, S(Î¸)**.

Now, enter the values appropriately and accordingly for the parameters as required by the **Solid – Liquid Interface (Î³ _{SL})** is

**12**,Â

**Volume Free Energy (Î”G**is

_{v})**6**Â and

**Function, S(Î¸)**is

**2**.

Finally, Click on Calculate

As you can see fromÂ the screenshot above,Â **Nickzom Calculator**â€“ The Calculator Encyclopedia solves for the activation energy for heterogenous nucleation and presents the formula, workings and steps too.