4. You are studying a stream that is contaminated with a particular reactive contaminant which follows a zero order reaction process (ie. the reaction rate is independent of the concentration of the contaminant). If you assume plug flow, a velocity of 10 cm/sec, and a zero order reaction rate of 0.5 mg/l min, how far down stream will the concentration be reduced by from 10 mg/L to 1 mg/L? (hint: do a mass balance for the system).

how far down stream will the concentration be reduced by from 10 mg/L to 1 mg/L?  = 108meters

Explanation:

check the file below for further explanation

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na