How to Calculate the Number of Phases Present | Gibbs Phase Rule

The image of number of phases present is represented below. To calculate number of phases present, three essential parameters are needed and these parameters are Number of Degree of Freedom (F), Number of Components in System (C) and Number of Non-Compositional Variables (N).

The formula for calculating number of phases present:

P = (C + N) – F

Where:

P = Number of Phases Present
F = Number of Degree of Freedom
C = Number of Components in System
N = Number of Non-Compositional Variables

Given an example;
Find the number of phases present when the number of degree of freedom is 8, the number of components in system is 2 and the number of  non-compositional variables is 5.

This implies that;

F = Number of Degree of Freedom = 8
C = Number of Components in System = 2
N = Number of Non-Compositional Variables = 5

P = (C + N) – F
That is, P = (4 + 5) – 8
P = (9) – 8
P = 1

Therefore, the number of phases present is 1.

Read more: How to Calculate the Number of Non-Compositional Variables | Gibbs Phase Rule

How to Calculate the Number of Phases Present Using Nickzom Calculator

Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the number of phases present.

To get the answer and workings of the number of phases present using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.

You can get this app via any of these means:

Web – https://www.nickzom.org/calculator-plus

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To get access to the professional version via web, you need to register and subscribe to have utter access to all functionalities.
You can also try the demo version via https://www.nickzom.org/calculator

Android (Paid) – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator
Android (Free) – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator

Apple (Paid) – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Materials and Metallurgical under Engineering.

Now, Click on Phase Transformation under Materials and Metallurgical

Then, Click on Gibbs Phase Rule under Phase Transformation

Now, Click on Number of Phases Present under Gibbs Phase Rule

The screenshot below displays the page or activity to enter your values, to get the answer for the number of phases present according to the respective parameter which is the Number of Degree of Freedom (F), Number of Components in System (C) and Number of Non-Compositional Variables (N).

How to Calculate the Number of Phases Present | Gibbs Phase Rule

Now, enter the values appropriately and accordingly for the parameters as required by the Number of Degree of Freedom (F) is 8, Number of Components in System (C) is 4 and Number of Non-Compositional Variables (N) is 5.

How to Calculate the Number of Phases Present | Gibbs Phase Rule

Finally, Click on Calculate

How to Calculate the Number of Phases Present | Gibbs Phase Rule

As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the number of phases present and presents the formula, workings and steps too.

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