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Both calculators run independently — change the inputs on either side to compare results.

Adsorption Isotherm Calculator

Compute equilibrium adsorption capacity using Langmuir or Freundlich isotherm models. Used by environmental and chemical engineers to design activated carbon beds, ion-exchange columns, and water treatment systems.

Equilibrium Concentration (mg/L)

Maximum Adsorption Capacity (mg/g)

Langmuir Constant (L/mg)

Freundlich K Constant

Isotherm Model

Fill in the required fields to see your result.

Chemical Engineering

Pipe Pressure Drop Calculator

Compute the friction term f·(L/D)·(v²/2) from the Darcy-Weisbach equation — the specific energy loss per unit mass of fluid flowing through a straight pipe. Multiply by fluid density to get pressure drop in Pa, or divide by g for head loss in metres.

Friction Factor

Pipe Length (m)

Pipe Diameter (m)

Fluid Velocity (m/s)

Fill in the required fields to see your result.

Key differences

	Adsorption Isotherm Calculator	Pipe Pressure Drop Calculator
Category	Chemical Engineering	Chemical Engineering
Inputs required	5	4
Result	Adsorption Capacity (mg/g)	Pressure Drop (m)
What it does	Compute equilibrium adsorption capacity using Langmuir or Freundlich isotherm models. Used by environmental and chemical engineers to design activated carbon beds, ion-exchange columns, and water treatment systems.	Compute the friction term f·(L/D)·(v²/2) from the Darcy-Weisbach equation — the specific energy loss per unit mass of fluid flowing through a straight pipe. Multiply by fluid density to get pressure drop in Pa, or divide by g for head loss in metres.