Enter the frictional coefficient and the absolute temperature into the Diffusion Coefficient Calculator. The calculator will evaluate the Diffusion Coefficient.

## Diffusion Coefficient Formula

The following two example problems outline the steps and information needed to calculate the Diffusion Coefficient.

D = (1/f) * k * t

Variables:

- D is the Diffusion Coefficient ( )
- f is the frictional coefficient
- t is the absolute temperature
- k is the Boltzmann Constant = 1.380649 * 10^-23 (m^2-kg/(s^2-K))

To calculate the diffusion coefficient, divide 1 by the friction coefficient, then multiply by the absolute temperature and the Boltzmann constant.

## How to Calculate Diffusion Coefficient?

The following steps outline how to calculate the Diffusion Coefficient.

- First, determine the frictional coefficient.
- Next, determine the absolute temperature.
- Next, gather the formula from above = D = (1/f) * k * t.
- Finally, calculate the Diffusion Coefficient.
- After inserting the variables and calculating the result, check your answer with the calculator above.

**Example Problem : **

Use the following variables as an example problem to test your knowledge.

frictional coefficient = .87

absolute temperature = 100

D = (1/f) * k * t** **= ?