# Does the rate of diffusion correspond with the molecular weight of the dye is the relationship inverse or direct?

## Does the rate of diffusion correspond with the molecular weight of the dye is the relationship inverse or direct?

The rate of diffusion is affected by the molecular weight of the molecule that is diffusing. The heavier the solute is, the slower the molecules move…

### How does the rate of diffusion correspond with the molecular weight of dye?

Does the rate of diffusion correspond with the molecular weight of the dye? The the density of the medium and the molecular weight of the dye will determine the rate of diffusion.

How did the molecular weight of the dye crystal affect the rate of diffusion?

Diffusion is inversely proportional to molecular weight. The lesser is the molecular weight, the faster the molecules diffuse. The Red dye difuses faster that the blue dye since the blue dye has a higher molecular weight.

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Why is there a correlation between molecular weight and rate of diffusion?

Molecular weight will affect the rate of diffusion. All other things being constant, lighter weight molecules will move faster or diffuse faster that heavier molecules. This property could be used to separate heavier molecules from lighter weight molecules.

## How does diffusion gradient affect the rate of diffusion?

Extent of the concentration gradient: The greater the difference in concentration, the more rapid the diffusion. The closer the distribution of the material gets to equilibrium, the slower the rate of diffusion becomes.

### Is the rate of diffusion constant?

The diffusion coefficient is a physical constant dependent on molecule size and other properties of the diffusing substance as well as on temperature and pressure. Diffusion coefficients of one substance into the other are commonly determined experimentally and presented in reference tables.

How does rate of diffusion depend on the speed of molecular motion?

How does the speed of diffusion depend on the speed of the molecules? The faster the molecules move, the greater the diffusion speed. In the region of high concentration of each substance, why is there a net movement of molecules outward? More molecules collide within the region of high concentration.

How does the dye relate to diffusion?

The food coloring mixes through the hot water faster than it mixes with the cold water. This makes it easier for the dye to get mixed throughout the hot water. Because diffusion happens from high concentration to low concentration, the more molecules are moving, the more opportunities they have to mix together.

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## What is the relationship between molecular weight and rate of molecular movement?

Graham’s law states that the rate of diffusion or of effusion of a gas is inversely proportional to the square root of its molecular weight.

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

Explanation: When the cell increases in size, the volume increases faster than the surface area, because volume is cubed where surface area is squared. When there is more volume and less surface area, diffusion takes longer and is less effective.

What determines the rate of diffusion?

The greater the difference in concentration, the quicker the rate of diffusion. The higher the temperature, the more kinetic energy the particles will have, so they will move and mix more quickly. The greater the surface area, the faster the rate of diffusion.

How does diffusion distance affect the rate of diffusion?

distance – if the diffusion distance is small, diffusion happens faster because the particles do not have as far to travel. surface area – the larger the surface area the higher the number of particles that will be able to move in a given time so the faster the rate.

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## Does molecular weight affect the rate of diffusion of substances?

The consequence of molecular weight to the rate of diffusion of substances had been obtained through agarose-water gel experiment. Drops of the undermentioned dye samples were used as controlled variables: K permanganate, K bichromate and methylene blue. Each dye has a molecular weight of 158 g/ mol, 294 g/mol and 374 g/mol, severally.

### Which dye diffuses faster red or blue?

For me the blue dye diffused faster than the red, but as far as the rate of diffusion I’d say they’re similar. Possibly there were different factors that changed my results vs. the charts. ”2. Which dye diffused the fastest? ”

Which substance has the lowest mean rate of diffusion?

It can be deduced that methylene blue ( methylthionine chloride ) had the lowest mean rate of diffusion knowing that its molecular weight is 374 g/mole and from this, it can besides be deduced that this substance diffused easy. Unwittingly, its molecular expression is C 16Hydrogen 18Nitrogen 3SCl.

How do you calculate the hourly diffusion rate?

” *Multiply the total distance diffused by 30 to get the hourly diffusion rate ” ”1. Examine the plot below. How well does it match the data you took in Table 2?”