diffusionconstant

2023年1月8日 — 12.8.2: The Diffusion Constant ... is known as the velocity autocorrelation function, a quantity we will encounter again in other contexts. This ...

2011年2月2日 — The diffusion coefficient is a physical constant dependent on molecule size and other properties of the diffusing substance as well as on ...

The diffusion coefficient (D) is the amount of a particular substance that diffuses across a unit area in 1 s under the influence of a gradient of one unit.

2015年1月14日 — A typical diffusion coefficient for a molecule in the gas phase is in the range of 10-6 to 10-5 m2/s. By contrast, diffusion for molecules ...

The diffusion constant resulting from function 2 is D = 11.6 × 10 − 5 cm 2 / s , and curve 3 leads to D = 17.7 × 10 − 5 cm 2 / s . Here too small variations ...

For biological molecules the diffusion coefficients normally range from 10−10 to 10−11 m2/s. In two or more dimensions we must use ∇, the del or gradient ...

由 M Schwartz 著作 — In biological systems, temperature is often very constant, convection is small, and molecules do not have to move very far. Diffusion of heat (thermal ...

R ≈ 8.31446 J/(mol⋅K) is the universal gas constant. Diffusion in crystalline solids, termed lattice diffusion, is commonly regarded to occur by two distinct ...