DIFFUSION AND CHEMICAL TRANSFORMATION
DIFFUSION AND CHEMICAL TRANSFORMATION
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DOI：
10.1126/science.179.4072.433
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发表时间：
1973-01-01
期刊：
影响因子：
56.9
通讯作者：
WEISZ, PB
中科院分区：
文献类型：
--
作者：
WEISZ, PB
分子的化学转化发生在无穷无尽的系统中。天然的和人造的。这些转化的速度和效率受反应物的可获得性影响。随着转变的发生，反应物的原始浓度被耗尽，并且几乎总是通过某种扩散过程来补充。因此，反应可达到的净速度取决于反应性和系统相关部分中扩散流能力的相对浓度。过程几乎在所有的科学“学科”中都会遇到，在日常生活中，扩散传输和变形反应的相互作用决定了现象的可行性。只有空格限制了可以枚举的示例的数量。从地质学、农学或生理学到花环的染色或厨房炉子上的锅。
The chen1ical transfornlation of rnolecules takes place in an endless nun1ber of systen1s. natural and mann1ade. The rate and effectiveness of these transforn1ations are influenced by the availability of the reactants. As transformation occurs, the original concentration of the reactants is depleted and, nearly always, is replenished hy some process of diffusion. The net attainable speed of the reaction thus depends on the relative con1petition of reactivity and of the capability for diffusive flow in the relevant parts of the system. Processes are encountered in nearly all scientific" disciplines," and in everyday life, where the interaction of diffusional transport and a transforrnation reaction detern1ine or lin1it the workability of a phenon1enon. Only space limits the number of exan1ples that could be enumerated. from geology, agronomy, or physiology to the dyeing of garo1ents or the pot on the kitchen stove.