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Apr 2, 2006 · 2.38 s. 1 mm. 3.97 min. 1 cm. 6.61 hours. 10 cm. 27.56 days. The above calculator allows us to evaluate the effectiveness of diffusion over physiologically relevant distances. The diffusion time values shown in Table 2 were obtained by considering the diffusion of O 2 over a range of distances.
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Apr 29, 2024 · The equation of Graham's law is: rate 1 / rate 2 = √ (mass 2 / mass 1) rate 1 and rate 2 - Rates of effusion or diffusion of Gas 1 and 2, respectively; mass 1 and mass 2 - Molar masses of Gas 1 and 2, respectively. This formula can be rearranged to calculate any variables, i.e., the rate of any of the gases or their molar masses.
Jan 16, 2018 · Graham found experimentally that the rate of effusion of a gas is inversely proportional to the square root of the mass of its particles. This formula can be written as: Rate1 Rate2 = √M 1 M 2 R a t e 1 R a t e 2 = M 1 M 2. where: Rate1 is the rate of effusion of the first gas (volume or number of moles per unit time).
The Stokes-Einstein formula is: D = kB ⋅T 6π⋅ η ⋅r D = k B ⋅ T 6 π ⋅ η ⋅ r. where: D = diffusion rate. k B = is the Boltzmann constant. T = the temperature. η = the medium viscosity. D D is the diffusion coefficient of the Brownian particle. For spherical particles of radius r, D D is determined by the Stokes-Einstein equation.
Apr 11, 2018 · While Fick’s First Law of Diffusion describes how much flux there is, it is in fact Fick’s Second Law of Diffusion that further describes the rate of diffusion, and it takes the form of a partial differential equation. Fick’s Second Law is described by the formula: T = (1 ÷ [2D])x2. which means that the time to diffuse increases with the ...
Jul 3, 2024 · The formula for calculating the diffusion rate of a second gas based on the diffusion rate of a first gas and their molar masses is given by: \ [ R2 = \frac {R1} {\sqrt {\frac {M2} {M1}}} \] where: \ (M1\) is the molar mass of gas 1. For instance, if the diffusion rate of gas 1 (R1) is 2 units and its molar mass (M1) is 32 g/mol, and the molar ...
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Jul 18, 2024 · Biological Applications. 1) Fick’s First Law gives rise to the formulae: Diffusion Flux = -P (c 2 -c 1 ), where, P is the permeability, an experimentally determined membrane ‘conductance’ for a given gas at a given temperature. c2-c1 is the difference in concentration of the gas across the membrane for the direction of flow from c 1 to c 2.
