A 200 g/l solution of common salt was discharged into a stream at a constant rateof 0.025 cms. Thebackground concentration of the salt in the stream water was found to be 10 ppm. At a downstreamsection where the solution was believed to have completely mixed, the salt concentration was found toreach an equilibrium value of 45 ppm. Required:
Estimate the discharge in stream

In a unit cell of fcc structure, indicate the position of one of the tetrahedral interstitial sites by plotting the corresponding tetrahedron. do the same for one of the octahedral interstitial sites (in a separate fcc unit cell). mark the positions of all the tetrahedral and octahedral interstitial sites in the unit cells. how many equivalent tetrahedral sites and how many equivalent octahedral sites are contained in a fcc unit cell, respectively. what is the coordination number for a tetrahedral site and what is the coordination number for an octahedral site?