A large, aerated lagoon is to be used to treat wastewater from a small community. The wastewater flow is 0.05 m³/s. The influent (input) wastewater contaminant concentration is 250 mg/L. The required effluent (output) concentration is 30 mg/L. It was found that the waste degrades according to first order kinetics. The degradation coefficient (k) for the reaction is 0.52 d'. You may assume that the lagoon is completely mixed and that conditions in the system are at steady state. Determine: a) The required volume of the lagoon b) The hydraulic detention time of the lagoon

800 705 kJ 600 497 kJ PE (kJ) 400 200 175 kJ 100 Reaction Progress Created by E. Lee for Virtual Virginia (2021) The reaction coordinate diagram above has an activated complex (AC) with a potential energy (PE) of 705 kJ. Imagine that a catalyst is added, bringing the AC PE down to 564 kJ. What will be the new activation energy, in kJ? Enter your answer as a whole number.

Consider a pseudo-first order rate constant for the degradation of MTBE in a fully mixed batch reactor that is equal of k' = 0.054min - 1 What will be the half life of MTBE in the reactor in units of minutes (min)?- will a reaction time of 1 minute be sufficient to get 50% removal of the MTBE?

Consider the reaction data. A products T (K) | k (s-1) 325 0.383 825 0.611 What two points should be plotted to graphically determine the activation energy of this reaction? To avoid rounding errors, use at least three significant figures in all values. X1 Yi = X2 = Y2 = Determine the rise, run, and slope of the line formed by these points. rise: run: slope: What is the activation energy of this reaction? Ea J/mol ? II