Problem 6. In a field study in the River Glatt in Switizerland, the concentrations of tetrachlorocthene (PCE) and 1,4-dichlorobenzene were measured at four locations along the riyer section, Along this section of river it couild be assumed that hhere is no input of water of the compounds of concem. The measurements were made in a way that a specific parcel of water was followed downstream and sampled at the appropriate distances. The study was conducted in part of the river where the average depth was 0.4m. and the mean velocity U was 0.67m/s. The diffusion cocfficient PCE and 1,4 dictilotobenrene in water are 0.92105cm2/s; and 0.98105, respectively at 25C. For this river the assume kg=50k4. The Henry's Coefficients far PCE and I, 4 dichlorobenzene are 27.5L-atm/mol, and 2.35L-atudmol, at 25C. The river temperature is 10C. The Henry's Coefficients can be adjusted based on the equationi giver Assume the changes in diffusion coefficients with temperature can be adjusted based on the equation: Assume an enthalpy change for Dr2=D20(298T2)1,75 this process is 31.1kJ/mol. Assume the following equation applies for the temperature correction: lnHccr1HCC2=RH(T2T2(TtT2)) Determine the K1 for the thot chemicals based on their chemical properties and the propertios of the river. 2n : Determine the Ka based on the following data