Word Count : 352

---

Fick's first law states that the particle flux (\vec{J}) due to diffusion is proportional to the negative gradient of particle density (n(\vec{r},t)): [ \vec{J} = -D \nabla n ] where (D) is the diffusion coefficient, (n) is the number density of particles, and (\vec{J}) is the particle flux (particles per unit area per unit time). Fick's law is fundamental in neutron transport and diffusion because it provides a macroscopic relation __________ ___ ____ _______ _______ ____.
__________ ____ ________ ______ ___ _____ __________ ______.
__________ ________ ____ __________ ________ ________.
____ _________ ____ _______ ____ ______ _________ __________ _________ _________ ________ _______.
___ ___ ____ ________ ____ ______ _________.
______ _________ ___ ______ _______ ____ ____ _______ ________ ____ _____.
________ _________ ________ ______ _______ _______ ______ _________ ____ __________ ________ ________.
_________ ________ ___ __________ ______ _______ ____ __________ _________ ______ _______ ______.
______ _____ _________ ____ ___ __________ ______ _______ ________ ___ __________.
________ __________ _________ ____ ____ ___.
__________ _____ ______ __________ _____ _________ _____ ____.
____ ____ _____ _______ _______ __________ ___.
___ __________ ______ ___ _______ _______ ______.
______ _______ ______ _______ __________.
______ _________ ______ ______ __________ ___ ____ _____ _________.
______ ___ ____ ________ _________ _____.
_____ ___ _________ ___ ___ ________ _________ ________ _____ _________.
___ _________ ______ ________ ____ _______ ___ _______ __________ _____.
__________ ________ _______ ______ ____ _________ ____ ____.
_____ __________ _________ _________ _________ ______ ____ _____ _________ ________.
________ __________ _____ _______ _______ _________ ______ _____ _____.
________ ______ ________ ___ _______ ______ ___ ______.
________ ______ ______ ________ _______ ____ ___ _______.
_____ __________ ____ ___ _______ ____ __________ ________.
_____ __________ ____ _______ ___ __________ _______ _________ _______ __________.
_______ ___ _____ ___ __________ _______ _______.
__________ ________ ________ ____ ____ _________ _____ __________.
__________ _______ ______ _________ ________ ______ _______ ________ __________.
__________ ____ ___ ___ __________.
______ _______ ______ _________ ______ __________ _______ ____.
________ _______ _____ ________ ______ _______ __________ ______ _________ ________.
__________ ______ ________ _______ ___ ____.
____ __________ ___ ______ ______ __________ __________ ______ ___.
__________ ________ ____ ________ _______ _____.
Get Full Answer on WhatsApp