Abstract
We evaluate a rigorous lower bound on the rate constant k associated with diffusion-controlled reactions in a porous medium composed of impenetrable spherical sinks, for a wide range of sink volume fractions. The results are compared to an effective-medium approximation for k. It is found that the lower bound gives a useful estimate of the rate constant for virtually all sink concentrations.
Original language | English (US) |
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Pages (from-to) | 7178-7179 |
Number of pages | 2 |
Journal | The Journal of chemical physics |
Volume | 85 |
Issue number | 12 |
DOIs | |
State | Published - 1986 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy
- Physical and Theoretical Chemistry