Apolluted lake with a constant volume 10*10^6 m3 is fed by a pollution-free stream with flow rate qs=5 m3/s that has a contaminant concentration cs=10 mg/l. a factory dumps 5 m3/s of a non-conservative waste with concentration cw= 100 mg/l into the lake. the pollutant has a reaction rate coefficient k of 0.2/day and the reaction is first-order decay. assuming the pollutant is well mixed in the lake, find the steady-state concentration of pollutant in the lake.

Free answer. the treaty of versailles ended world war i, but some of the terms of the treaty contributed to the beginning of world war ii. which was one of the terms of the treaty? the answer would be "germany was forces to pay reparations to the allied countries.". i hope this .

In which reaction is precipitation occurring?

Astudent pours 10.0 g of salt into a container of water and observes the amount of time it takes for the salt to dissolve. she then repeats the process using the same amounts of salt and water but this time she slowly stirs the mixture while it is dissolving. the student performs the experiment one more time but this time she stirs the mixture rapidly. the dependent variable in this experiment is: time for salt to dissolve speed of stirring amount of water mass of salt