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  1. The change in diffusing molecules over time is called the rate of diffusion. The diffusion rate of a gas is inverse to the square root of the volume (density). Hence, the rate of diffusion formula is: rate of diffusion \[\alpha \frac{1}{\sqrt{density}}\]

  2. 13 lut 2023 · Determine the rate of diffusion (flux) for aspirin dissolving through the stomach lining. C 1 = 50 mg/L and C 2 = 290 mg/L. The diffusivity constant of aspirin is 0.29×10 -9 cm 2 /s and the thickness of the stomach lining is approximately 0.5 cm.

  3. Graham’s law is an empirical relationship that states that the ratio of the rates of diffusion or effusion of two gases is the square root of the inverse ratio of their molar masses.

  4. 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. The Formula can be written as. M1 is the molar mass of gas 1. M2 is the molar mass of gas 2. Rate1 is the rate of effusion of the first gas.

  5. chem.libretexts.org › Bookshelves › Physical_and_Theoretical_Chemistry_Textbook9: Diffusion - Chemistry LibreTexts

    13 lut 2023 · Diffusion can be described as the random movement of particles through space, usually due to a concentration gradient. Diffusion is a spontaneous process and is a result of the random thermal motions between two particles. The diffusion coefficient (\(D\)) can be solved for with Fick’s laws of diffusion, which are broken up into two laws.

  6. ncert.nic.in › ncerts › lUNIT 4 - NCERT

    Diffusion is a slow process and is not dependent on a ‘living system’. Diffusion is obvious in gases and liquids, but diffusion in solids rather than of solids is more likely. Diffusion is very important to plants since it is the only means for gaseous movement within the plant body. Diffusion rates are affected by the gradient of ...

  7. diffusion. occurring between different regions, it also occurs across membranes, between the outside and inside of cells. The rate of diffusion can be affected by a number of factors:...