A river section shown has an initial volume of 600m with 750g of phosphorus. The discharge from the upstream is 100 carrying 2g of phosphorus per cubic meter. A small factory releases their day treated wastewater to the river at 20 with 1.5g of phosphorus per cubic meter. The discharge at the downstream side is 120. Assume that the river mixture is uniform for the given section. day day a) Determine the equation for the mass of phosphorus in the river section at any time, m(t). b) How many days will it take for the phosphorus concentration in the river section to be 1.75? m

A river section shown has an initial volume of 600m with 750g of phosphorus. The discharge from the upstream is 100 carrying 2g of phosphorus per cubic meter. A small factory releases their day treated wastewater to the river at 20 with 1.5g of phosphorus per cubic meter. The discharge at the downstream side is 120. Assume that the river mixture is uniform for the given section. day day a) Determine the equation for the mass of phosphorus in the river section at any time, m(t). b) How many days will it take for the phosphorus concentration in the river section to be 1.75? m

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Chemical and Phase Equilibrium

Phase diagrams or equilibrium phase diagrams are the graphical representations that show the phase transformations of the constituting elements with respect to the pressure, temperature, and compositions. The diagrams show the conditions that limit the different phases, namely solid, liquid, and gas. The diagram can also be utilized to verify the relations between the state variables. Most of the phase diagrams are temperature-pressure phase diagrams, with the variable parameter as the composition. Usually other variables such as solubility and pressure parameters are not indicated in the phase diagram. For a one-component system (unary phase diagram), the phase diagram is generally a function of temperature and pressure as the state variables, or temperature and volume. However, for a binary system (two-phase) having two components, the phase diagram is a function of temperature and composition as the state variables only. Coexisting of the different phases of the constituting elements is indicated in the phase diagram. A ternary phase diagram can be characterized by consisting of three phases in equilibrium.

Question

A river section shown has an initial volume of 600m with 750g of phosphorus. The discharge from
the upstream is 100 carrying 2g of phosphorus per cubic meter. A small factory releases their
treated wastewater to the river at 20- with 1.5g of phosphorus per cubic meter. The discharge at
the downstream side is 120 Assume that the river mixture is uniform for the given section.
day
day
day
a) Determine the equation for the mass of phosphorus in the river section at any time, m(t).
b) How many days will it take for the phosphorus concentration in the river section to be 1.75 ?

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