Question

In: Other

Water flows at 20 cm^3/sec through a long straight tube that has an inner diameter of...

Water flows at 20 cm^3/sec through a long straight tube that has an inner diameter of 1 cm. As the water flows, a toxin leaches from the tube into the water. At the inner surface of the tube, the toxin attains its saturation concentration, Csat = 2 mM. Fortunately, upon entering the water the toxin also irreversibly degrades into a non-toxic compound; this degradation follows first-order kinetics.

Toxin Diffusivity D = 10^-5 cm^2/sec

Toxin mass transfer coefficient k = 1.38 X 10^-3 cm/sec

Toxin degradation rate constant k1= 5.5 X 10^-3/sec

In order to evaluate whether the water is still safe to drink, we need to know the limiting concentration of the toxin? (In other words, what concentration does the toxin approach as the length of the tube approaches infinity)

Solutions

Expert Solution


Related Solutions

Consider a long straight hollow cylindrical metal tube with an inner diameter of R. The possible...
Consider a long straight hollow cylindrical metal tube with an inner diameter of R. The possible TE modes and TM modes for electromagnetic waves to propagate in this wave guide system
Through a double tube exchanger hot water circulates through the inner tube and water fry through...
Through a double tube exchanger hot water circulates through the inner tube and water fry through the outer tube. For countercurrent arrangement the following data is displayed: Cold water inlet temperature Tca 24.5 ° C Cold water outlet temperature Tcb 48.0 ° C Hot water inlet temperature Tha 86 ° C Hot water outlet temperature Thb 55 ° C Cold water flow 2.00 gal / min Calliente water flow 2.00 gal / min Transfer area 0.65 m2 Length of the...
A current of 5 mA flows through a 2 mm inner-diameter glass tube filled with 1.0...
A current of 5 mA flows through a 2 mm inner-diameter glass tube filled with 1.0 mol dm-3 NaCl(aq) solution in the anode compartment in addition to a CH3COONa (aq) solution in the cathode compartment. The boundary created between the two solutions moves 6.05 mm towards the anode in 10 minutes. Calculate the transport number of the chloride ion in the solution.
A toroid with inner diameter of 3 cm, outer diameter of 5 cm, and height of...
A toroid with inner diameter of 3 cm, outer diameter of 5 cm, and height of 0.1 cm is made of a body-centered-cubic (bcc) paramagnetic material with lattice parameter equal to 0.5 nm. The toroid is wrapped by a copper wire in 20 turns. If each atom of the magnetic material has a magnetic moment of 1.5µB (Bohr Magneton), (a) (1.5 pt) What is the saturation magnetization (in A/m) of the material? (b) (1.5 pt) If a current of 2...
Steam in a heating system flows through tube whose outer diameter is 10 cm and whose...
Steam in a heating system flows through tube whose outer diameter is 10 cm and whose walls are maintained at a temperature of 150°C. Circular aluminum alloy 2024-T6 fins (k = 186 W/m · °C) of outer diameter 15 cm and constant thickness 2 mm are attached to the tube. Heat is transferred to the surrounding air at T∞ = 25°C, with a heat transfer coefficient of 50 W/m2 C . If the total tube length is 5 m and...
A 7.7 cm diameter horizontal pipe gradually narrows to 6.0 cm . When water flows through...
A 7.7 cm diameter horizontal pipe gradually narrows to 6.0 cm . When water flows through this pipe at a certain rate, the gauge pressure in these two sections is 34.0 kPa and 22.8 kPa , respectively. What is the volume rate of flow?
A 5.1 cm diameter horizontal pipe gradually narrows to 2.5 cm . When water flows through...
A 5.1 cm diameter horizontal pipe gradually narrows to 2.5 cm . When water flows through this pipe at a certain rate, the gauge pressure in these two sections is 35.0 kPa and 21.8 kPa , respectively. What is the volume rate of flow?
A hypodermic needle is 4.0 cm long and has an inner diameter of 0.25 mm. Assume...
A hypodermic needle is 4.0 cm long and has an inner diameter of 0.25 mm. Assume the syringe contents have the same properties as water and is at 20 C. a. What pressure is needed to deliver a steady flow of 0.1 cm3 per second? b. If the inner diameter of the needle were increased by 20%, what pressure would be needed to deliver the same flow?
The inner and outer diameter of a single core cable are 3 cm and 8.5 cm...
The inner and outer diameter of a single core cable are 3 cm and 8.5 cm The insulated with two materials having relative permittivity of 5 and 3.5 respectively with corresponding maximum electric stresses of 35 kV/cm and 25 kV/cm. Draw the configuration and calculate: a) the radial thickness of each insulating layer. b) the safe working voltage of the cable. c) draw the voltage and electric stress as a function of radial distance from center to metal sheath.
A 8.0-cm-diameter horizontal pipe gradually narrows to 5.0 cm . When water flows through this pipe...
A 8.0-cm-diameter horizontal pipe gradually narrows to 5.0 cm . When water flows through this pipe at a certain rate, the gauge pressure in these two sections is 31.0 kPa and 25.0 kPa , respectively. What is the volume rate of flow?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT