Diffusion Rate Calculator

Diffusion rate calculator :

This calculator helps you determine the rate at which a substance (such as a gas or solute) diffuses through a particular material. Diffusion is the process where particles move from an area of high concentration to an area of low concentration, and the rate depends on the properties of the material, the thickness, and the difference in concentration.

Diffusion rate calculation:

• Material: Select the material through which the substance is diffusing. Each material has a specific diffusion coefficient (D), which is predefined in this calculator.
• Surface Area (A): Enter the surface area in square meters (m²). This is the area through which diffusion occurs.
• Concentration Difference (ΔC): Enter the difference in concentration of the substance on either side of the material in moles per cubic meter (mol/m³).
• Thickness (d): Enter the thickness of the material in meters (m). A thicker material will slow down the diffusion rate.

Diffusion rate formula:

The following formula is used to calculate the diffusion rate:

Diffusion Rate = (D × A × ΔC) / d

Where:

• D: Diffusion coefficient of the selected material (in m²/s)
• A: Surface area of diffusion (in m²)
• ΔC: Concentration difference (in mol/m³)
• d: Thickness of the material (in meters)