## How do you calculate the extent of diffusion?

Calculate % diffusion = Volume diffused /total volume x 100.

## What is the conclusion of diffusion?

Conclusions. Temperature and the shape of the containers affected the rate of diffusion in both experiments. Particles move faster in warmer water, so the red coloring spread more quickly through the cup.

How might you test the effects of cell size on the extent of diffusion?

Use cubes of agar to investigate how size impacts diffusion. All biological cells require the transport of materials across the plasma membrane into and out of the cell. By infusing cubes of agar with a pH indicator, and then soaking the treated cubes in vinegar, you can model how diffusion occurs in cells.

What is the relationship between rate of diffusion and cell size?

The surface-to-volume ratio of a sphere is 3/r; as the cell gets bigger, its surface-to-volume ratio decreases, making diffusion less efficient. The larger the size of the sphere, or animal, the less surface area for diffusion it possesses.

Expert-verified answer The observation to be made is that the molecules will spread from a highly concentrated region to lowly concentrated region, for instance if th potassium termagant is dropped in a beaker containing water its color will spread in the whole beaker gradually through diffusion.

### How do you compare the 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. In these equations, r = rate of diffusion or effusion and M = molar mass.

What is the conclusion of diffusion of two gases?

Conclusion: Lighter gases diffuse faster than heavier gases.

What is the relationship between cell size and diffusion rate?

## How does shape and size affect the rate of diffusion?

Diffusion is like going through a net or sieve. Smaller sizes and shapes pass through more easily than large ones.

## What does the rate of diffusion depend on?

The rate of diffusion depends on the nature of interaction between the medium and material. For instance, a gas diffuses very quickly in another gas. An example of this is the way the noxious smell of ammonia gas spreads in air.

What is diffusion?

Diffusion is the net movement of molecules or atoms from a region of high concentration (or high chemical potential) to a region of low concentration (or low chemical potential) as a result of random motion of the molecules or atoms.

What are the two length scales of diffusion?

When talking about the extent of diffusion, two length scales are used in two different scenarios: Brownian motion of an impulsive point source (for example, one single spray of perfume)—the square root of the mean squared displacement from this point.