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Fick’s Calculator Online

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The Fick’s Calculator is a valuable tool used in various scientific fields to determine the rate of diffusion of a substance across a given medium. It employs Fick’s first law of diffusion, which describes how concentration gradients drive the movement of particles from regions of high concentration to regions of low concentration.

Formula of Fick’s Calculator

The formula used in Fick’s Calculator is as follows:

J = -D * A * (dC/dx)


  • J is the rate of diffusion (mol/s)
  • D is the diffusion coefficient (m²/s)
  • A is the cross-sectional area for diffusion (m²)
  • dC/dx is the concentration gradient (mol/m³/m or mol/m⁴)
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This formula allows scientists and researchers to quantify the rate at which a substance diffuses through a medium, providing valuable insights into various processes such as gas exchange in biological systems, diffusion of chemicals in industrial applications, and transport phenomena in materials science.

General Terms Table

To facilitate ease of use, here’s a table of general terms and their meanings that are frequently associated with Fick’s Calculator:

Diffusion CoefficientMeasure of how easily a substance diffuses
Cross-sectional AreaArea perpendicular to the direction of diffusion
Concentration GradientChange in concentration over a given distance

This table provides a quick reference for users to understand the terms commonly encountered when using the Calculator.

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Example of Fick’s Calculator

Let’s consider an example to illustrate the application of the Calculator:

Suppose we have a membrane with a diffusion coefficient (D) of 0.5 m²/s, a cross-sectional area (A) of 0.1 m², and a concentration gradient (dC/dx) of 2 mol/m⁴.

Using the formula J = -D * A * (dC/dx), we can calculate the rate of diffusion (J):

J = -0.5 * 0.1 * 2 = -0.1 mol/s

So, the rate of diffusion in this example is -0.1 mol/s.

Most Common FAQs

1. What is the significance of Calculator in scientific research?

Calculator allows researchers to quantitatively analyze the diffusion of substances, providing crucial insights into various processes such as drug delivery, gas exchange in biological systems, and material science applications.

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2. Can Calculator be used in medical research?

Yes, Calculator is commonly employed in medical research to study phenomena such as gas exchange in the lungs, diffusion of drugs across membranes, and transport of nutrients in biological systems.

3. How accurate is Calculator?

Calculator provides accurate results when the input parameters, such as diffusion coefficient and concentration gradient, are accurately measured. However, it’s essential to ensure the validity of the assumptions underlying Fick’s law in the specific context of the research.

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