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A waste being discharged into a river that has a temperature of 10C. What fraction of the maximum oxygen consumption has occurred in 4 days

A waste being discharged into a river that has a temperature of 10C. What fraction of the maximum oxygen consumption has occurred in 4 days if the BOD rate constant, r, determined in the laboratory standard conditions is 0.115 day-1 (all rate constants are base e)

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