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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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Effect of molecular size on diffusion?
In general, larger molecules diffuse more slowly than smaller molecules because they have a larger molecular weight and therefore experience more resistance from the surrounding medium as they move. This is due to the fact that larger molecules have a lower diffusion coefficient and therefore diffuse at a slower rate. Additionally, larger molecules may also be more prone to interacting with other molecules in their surroundings, further slowing down their diffusion.
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 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.
What controls the rate of diffusion?
The rate of diffusion is directly related to the concentration of gradient. For example, the greater the amount between the concentration of the areas, the greater the greater to difference in diffusion.
How does material size affect the movement in and out of cells?
Material size can affect the movement in and out of cells by influencing the mechanisms involved in transport. Small molecules can easily pass through the cell membrane via simple diffusion, while larger molecules may require energy (active transport) or specific transport proteins (facilitated diffusion) to move in and out of cells. Size can also impact the rate of diffusion, with smaller molecules diffusing more quickly than larger ones.
What influences the rate of diffusion?
The rate of diffusion is influenced by the concentration gradient, temperature, molecular size, and the medium through which the particles are diffusing. A steeper concentration gradient, higher temperature, smaller molecular size, and a less dense medium all tend to increase the rate of diffusion.
Does the presence of another substance affect the rate of diffusion?
Yes, the presence of another substance can affect the rate of diffusion. Factors like the nature of the substance, concentration gradient, temperature, and molecular size can influence how quickly a substance diffuses in a system.
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 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 conditions affect diffusion?
Diffusion is affected by factors such as temperature, concentration gradient, molecular weight/size of particles, and the medium through which the particles are diffusing. For example, higher temperatures generally increase the rate of diffusion, while larger particles diffuse more slowly.
The rate of diffusion depends on?
The rate of diffusion depends on the concentration gradient, temperature, molecular weight, and surface area available for diffusion. A steeper concentration gradient, higher temperature, smaller molecular weight, and larger surface area all contribute to faster rates of diffusion.
Effect of molecular size on diffusion?
In general, larger molecules diffuse more slowly than smaller molecules because they have a larger molecular weight and therefore experience more resistance from the surrounding medium as they move. This is due to the fact that larger molecules have a lower diffusion coefficient and therefore diffuse at a slower rate. Additionally, larger molecules may also be more prone to interacting with other molecules in their surroundings, further slowing down their diffusion.
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
Does potassium permanganated diffuse faster than malachite green?
Potassium permanganate usually diffuses slower than malachite green because it is a larger molecule with a higher molecular weight. Molecular size and molecular weight can affect the rate of diffusion, with smaller molecules diffusing faster than larger ones.
What factors most affect the rate of diffusion?
The factors that most affect the rate of diffusion include the concentration gradient (difference in concentration between two areas), temperature (higher temperatures increase molecular motion), surface area (larger surface area allows for more contact between molecules), and the size and nature of the particles diffusing (smaller, nonpolar molecules diffuse more quickly).
What factors affect simple diffusion?
Factors that affect simple diffusion include concentration gradient (higher concentration difference leads to faster diffusion), temperature (higher temperatures increase diffusion rate), surface area available for diffusion (larger surface area allows for faster diffusion), and characteristics of the molecules themselves (size and solubility).
What are the factors which affect rate of diffusion?
Factors that affect the rate of diffusion include the concentration gradient (difference in concentration between two areas), temperature (higher temperature increases the kinetic energy of molecules), surface area (larger surface area allows for more molecules to diffuse), and the characteristics of the diffusing molecules (size, polarity, charge).
