How to Calculate and Solve for Calculate the Number of Non-Compositional Variables | Gibbs Phase Rule
Last Updated on December 11, 2022
The image of number of non-compositional variables is represented above.
To compute for number of non-compositional variables, three essential parameters are needed and these parameters are Number of Phases Present (P), Number of Degree of Freedom (F) and Number of Components in System (C).
The formula for calculating number of non-compositional variables:
N = (P + F) – C
Where:
N = Number of Non-Compositional Variables
P = Number of Phases Present
F = Number of Degree of Freedom
C = Number of Components in System
Given an example;
Find the number of non-compositional variables when the number of phases is 24, the number of degree of freedom is 11 and the number of components in system is 9.
This implies that;
P = Number of Phases Present = 24
F = Number of Degree of Freedom = 11
C = Number of Components in System = 9
N = (P + F) – C
N = (24 + 11) – 9
N = (35) – 9
N = 26
Therefore, the number of non-compositional variables is 26.
Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the number of non-compositional variables.
To get the answer and workings of the number of non-compositional variables 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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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
Now, Click on Gibbs Phase Rule under Phase Transformation
Now, Click on Number of Non-Compositional Variables under Gibbs Phase Rule
The screenshot below displays the page or activity to enter your values, to get the answer for the number of non-compositional variables according to the respective parameter which is the Number of Phases Present (P), Number of Degree of Freedom (F) and Number of Components in System (C).
Now, enter the values appropriately and accordingly for the parameters as required by the Number of Phases Present (P) is 24, Number of Degree of Freedom (F) is 11 and Number of Components in System (C) is 9.
Finally, Click on Calculate
As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the number of non-compositional variables and presents the formula, workings and steps too.