The image above represents volume measured of gas adsorbed. To calculate for volume measured of gas adsorbed, three essential parameters are needed and these parameters are Monolayer Maximum Volume Uptake (Vm), c and Gas to Vapour Pressure Ratio (x).
The formula for calculating volume measured of gas adsorbed:
V = Vmcx/(1 – x) (1 + (c – 1)x)
Where:
V = Volume Measured of Gas Adsorbed | BET Adsorption Isotherm
Vm = Monolayer Maximum Volume Uptake
x = Gas to Vapour Pressure Ratio
Let’s solve an example;
Find the volume measured of gas adsorbed when the monolayer maximum volume update is 2, c is 4 and the gas to vapour pressure ratio is 6.
This implies that;
Vm = Monolayer Maximum Volume Uptake = 2
c = 4
x = Gas to Vapour Pressure Ratio = 6
V = Vmcx/(1 – x) (1 + (c – 1)x)
That is, V = (2)(4)(6)/(1 – 6)(1 + (4 – 1)6)
V = 48/(-5)(1 + (3)6)
V = 48/(-5)(1 + 18)
So, V = 48/(-5)(19)
V = 48/-95
V = -0.505
Therefore, the volume measured of gas absorbed is -0.505m³ .
Read more:Â How to Calculate and Solve for Gas to Vapour Pressure Ratio | Mineral Processing
How to Calculate Volume Measured of Gas Adsorbed | BET Adsorption Isotherm Using Nickzom Calculator
Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the volume measured of gas absorbed.
To get the answer and workings of the volume measured of gas absorbed 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 Mineral Processing under Materials and Metallurgical
Now, Click on Volume Measured of Gas Absorbed under Mineral Processing
The screenshot below displays the page or activity to enter your values, to get the answer for the volume measured of gas absorbed according to the respective parameter which is the Monolayer Maximum Volume Uptake (Vm), c and Gas to Vapour Pressure Ratio (x).
Now, enter the values appropriately and accordingly for the parameters as required by the Monolayer Maximum Volume Uptake (Vm) is 2, c is 4 and Gas to Vapour Pressure Ratio (x) is 6.
Finally, Click on Calculate
As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the volume measured of gas absorbed and presents the formula, workings and steps too.
