## What is N in diffusion?

The diffusion coefficient is the coefficient in the Fick’s first law. , where J is the diffusion flux (amount of substance) per unit area per unit time, n (for ideal mixtures) is the concentration, x is the position [length].

### What is the full definition of diffusion?

diffusion, process resulting from random motion of molecules by which there is a net flow of matter from a region of high concentration to a region of low concentration.

#### What effusion means?

(eh-FYOO-zhun) An abnormal collection of fluid in hollow spaces or between tissues of the body. For example, a pleural effusion is a collection of fluid between the two layers of membrane covering the lungs.

**How is diffusion coefficient defined?**

Definition of diffusion coefficient : the quantity of a substance that in diffusing from one region to another passes through each unit of cross section per unit of time when the volume-concentration gradient is unity.

**What is diffusion Class 8?**

“Diffusion is the movement of molecules from a region of higher concentration to a region of lower concentration down the concentration gradient.”

## What is diffusion?

– Definition, Types & Examples Of Diffusion “Diffusion is the movement of molecules from a region of higher concentration to a region of lower concentration down the concentration gradient.” Read on to explore what is diffusion and the different types of diffusion. What is Diffusion?

### What is the difference between T and μ in diffusion?

t is time. Solving this equation, one obtained the time-dependent diffusion constant in the long-time limit and when the particle is significantly denser than the surrounding fluid, T is the absolute temperature. μ is the mobility of the particle in the fluid or gas, which can be calculated using the Einstein relation (kinetic theory).

#### What is momentum diffusion?

Momentum diffusion most commonly refers to the diffusion, or spread of momentum between particles ( atoms or molecules) of matter, often in the fluid state. This transport of momentum can occur in any direction of the fluid flow. Momentum diffusion can be attributed to either external pressure or shear stress or both.

**What molecules are not involved in diffusion?**

One of the main characteristics of diffusion is the movement of molecules along the concentration gradient. While this could be facilitated by other molecules, it does not directly involve high-energy molecules such as adenosine triphosphate (ATP) or guanosine triphosphate (GTP).