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Problem- What is the advective flux of total Cr that is discharged into a river (assume no Cr in the river before the discharge) with a flow rate of 15 m3/s from two leather tanning facilities? The first facility discharges 100 L/s of wastewater contaminated with 1 mg Cr/L, while the second one discharges at a rate of 50 L/s and a concentration of 15 mgCr/L. Consider the cross-sectional area of the river is 20 m2 after all discharges. Calculate the flux at point characterized by the cross-sectional area.
I need proficient help to explain each and every step in detail of the above problems.
A gas expands and does P-V work on the surroundings equal to 283 J. At the same time, it absorbs 216 J of heat from the surroundings. What is the change in energy of the system
The land area of Greenland is 840,000 mi2 with 132,000 mi2 free of ice. The average thickness of ice is 5000 ft. The density of the ice is 0.917 g/ml. Calculate the mass of ice in tons
Sulfur-35 is used in some medical procedures. The physical half-life of S-35 is 87.2 days. If the effective half-life of S-35 in the body is 76.4 days, what is its biological half life
Determine the vapor P lowering, freezing point depression, boiling point elevation, and osmotic pressure when the sample is dissolved in 10.0 g water
What mass of this substance must evaporate to freeze 185g of water initially at 17 degrees Celsius? (The heat of fusion of water is 334J/g; the specific heat of water is 4.18 J/g-K.)
what is the change in enthropy for this process in kJ/K*mole. The atomic mass of oxygen is 16.00.
suppose that a fully charged lead-acid battery contains 1.50 l of 5.00 m h2so4. what will be the concentration of h2so4
A curved surface of a liquid which has its vapor pressure at equilibrium with the surroundings has a higher vapor pressure than a flat surface. Why
Hydrogen peroxide undergoes a first-order decomposition to water and O2 in aqueous solution. The rate constant at 25 °C is 7.40 * 10-4 s-1. Calculate the volume of O2 obtained from the decomposition of 1.00 mol H2O2 at 25 °C and 740 mmHg after 20...
Calculate the volume, in liters, of a 4.92 mol H2S(g) at 60 degrees C and 1.75 atm how do you do this
The Nernst equation is used to predict the impact of concentration on the cell potential. What value of slope does the Nernst equation predict
If 23.13 g of Al at 337.0oC is added to 157.9 g of water at 25.4oC, what is the final temperature (oC) of the mixture?
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