# According to fick’s law, which event would cause a decrease in the rate of diffusion?

## What is Fick’s Law of Diffusion equation?

Fick’s law describes diffusion from spheres along the concentration gradient as:(10.1)∂C∂t=D∂2C∂r2+2∂Cr∂rwhere C is CMM concentration in coal in ft3/ft3, t is time in second, D is coefficient of diffusion in ft2/s, and r is radial coordinate in ft.

## How does Fick’s law affect diffusion?

Fick’s Law describes the relationship between the rate of diffusion and the three factors that affect diffusion. It states that ‘the rate of diffusion is proportional to both the surface area and concentration difference and is inversely proportional to the thickness of the membrane’.

## What does Fick’s first law mean?

Fick’s First Law states that flux is proportional to the CONCENTRATION GRADIENT, and the proportionality constant D is the DIFFUSION COEFFICIENT.

## What is Fick’s law used for?

Fick’s laws of diffusion describe diffusion and were derived by Adolf Fick in 1855. They can be used to solve for the diffusion coefficient, D. Fick’s first law can be used to derive his second law which in turn is identical to the diffusion equation.

## What are the 3 types of diffusion?

1 Answer. Simple diffusion, osmosis and facilitated diffusion.

## What is the formula of rate of diffusion?

Graham’s Law Formula

Graham’s law states that the rate of diffusion or effusion of a gas is inversely proportional to the square root of its molar mass. See this law in equation form below. r ∝ 1/(M)½ or. r(M)½ = constant.

## What is Fick’s second law of diffusion?

Fick’s 2nd law of diffusion

Consider diffusion at the front and rear surfaces of an incremental planar volume. Fick’s 2nd law of diffusion describes the rate of accumulation (or depletion) of concentration within the volume as proportional to the local curvature of the concentration gradient.

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## What affects the rate of diffusion?

Several factors affect the rate of diffusion of a solute including the mass of the solute, the temperature of the environment, the solvent density, and the distance traveled.

## What is the concentration gradient?

A concentration gradient occurs when the concentration of particles is higher in one area than another. In passive transport, particles will diffuse down a concentration gradient, from areas of higher concentration to areas of lower concentration, until they are evenly spaced.

## What is non steady state diffusion?

➢ Steady-state and Non-steady-state diffusion processes are distinguished by the parameter – diffusion flux, J. ➢ Flux is defined as number of atoms crossing a unit area perpendicular to a given direction per unit time. … On the other hand, for non-steady-state diffusion process, flux is dependent on time.

## Which of the following law is used for steady state diffusion?

Which of the following law is used for steady state diffusion? Explanation: Fick’s law is used under steady state conditions to obtain the diffusion coefficient. Bragg’s law is used in diffraction of light while Charles’s law is used in thermodynamics and is also known as the law of volumes.