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Rate of diffusion is indirectly proportional to the molecular mass. This means that for a heavier particle, (i.e, higher molecular mass), the rate of diffusion is slower because they would have to travel the same distance with more energy compared to smaller molecules. Imagine a fat man trying to run and a slimmer man, the fat man would require more energy.

Read more: What_is_the_relationship_between_the_rate_of_diffusion_and_the_molecular_mass_of_a_substance

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12y ago
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16y ago

Rate of diffusion of gas 'A' is inversely proportional to the square root of the molecular weight of 'A'.

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13y ago

= They have inverse relationships with each other. Smaller molecules would have faster diffusivity rate. =

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13y ago

they are inversely proportional.

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12y ago

Yes; it is about Inertia.

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Q: How does molecular size affect diffusion rate?
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Effect of molecular size on diffusion?

Molecular Diffusion Of Light


What factor affects the rate of diffusion?

Diffusion refers to the process where substances from a highly concentrated area move to a place with a lower concentration. The three factors that affect the rate of diffusion are temperature, concentration gradient and the molecular weight of the substances.


What conditions affect diffusion?

Factors that may affect Diffusion rates are: Temperature, Concentration, Different tissue types, Molecular size, Surface area to volume ratio.


How does the molecular rate affect rate of diffusion?

First, we must understand what diffusion is! Diffusion is the movement of particles from a high concentration to a lower concentration, in order to reach equilibrium. Cells in particular need this to maintain homeostasis, or an internal equilibrium (stability). Do you mean molecular size or composition, perhaps? Bigger particles are harder to move than smaller molecules. Additionally, physical constitution of a particle will affect the rate of diffusion. Think of a mouse squeezing under a door as compared to a rock, of the same size. A mouse will more easily be able to squeeze through the gap Edit The rate of diffusion is inversely proportional to square root of its inverse of its molecular weight


What factors most affect the rate of diffusion in a liquid or agas?

Two factors which determine the rate of diffusion of a liquid in another liquid include temperature and particle size. The higher the temperature, the faster diffusion takes place, and the smaller the particle, the faster diffusion takes place.


What influences the rate of diffusion?

The rate of diffusion increases with temperature. The rate of diffusion also increases with the concentration gradient and the surface area.


What factors affecting the diffusion?

There several physical factors that affect the rate at which particles diffuse. These include: the size of the particle, the temperature, the concentration difference, the diffusion distance, the surface area, and permeability.


What is diffusion rate proportional to?

rate of diffusion depends on the concentration gradient, surface area, distance over which diffusion takes place, size and nature of the diffusing molecule.


What factors affect the rate of diffustion of one gas through another?

Some factors are:- temperature- pressure- molecular size- concentration


What would be a hypotheses about the relationship between molecule size and rate of diffusion?

Diffusion will take place more quickly if the surface area of the cell is larger. For example if you cut 3 pieces of potato, 1cm, 1.5cm and 2cm and soaked them in a chemical such as potassium, the smaller of the potato's will be less affected.


The rate of diffusion depends on?

Concentration of molecules, size of particles and temperature


What factor affect the rate of transport?

The types of materials that have to get in the cell, for ex. some may be too big to fit through the protein.A better answer is:The factors that affect the rate are the size of the gradient, molecular size, charge, and lipid solubility. Sorce: http://www.innvista.com/health/anatomy/celltran.htm