Engineering, 16.11.2020 17:20 eweqwoewoji
It has been reported that Americans as a whole (300 million of us) ingest a total of approximately 8 tons/day of lead from corrosion of water pipes and lead-tin solder in older potable water distribution systems. The drinking water standard for lead is 0.05 mg/L total soluble lead. One method for removing heavy metals such as lead is pH adjustment to precipitate the metal hydroxide.
Required:
a. Draw a diagram that shows the concentration of all the lead hydroxide complexes in a saturated solution.
b. Using the logarithmic concentration diagram, determine the minimum solubility of lead (in mg/L as Pb) in water.
Answers: 1
Engineering, 04.07.2019 18:10
The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody
Answers: 2
Engineering, 04.07.2019 18:20
For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor
Answers: 3
Engineering, 04.07.2019 19:10
For a process taking place in a closed system containing gas, the volume and pressure relationship is pvi-constant. -1.5 bar, the process starts with initial conditions, pi = =0.03 m3 and ends with final volume, v2-0.05 m3 determine the work done by the gas.
Answers: 2
Engineering, 06.07.2019 02:30
Around steel bar, made from material with a yield stress of 750mpa, is loaded so that it has stresses co locations of maximum normal stress and maximum shear stress. use maximum shear stress and maximum distortion energy theories to calculate the safety factors for initial yielding failures.
Answers: 3
It has been reported that Americans as a whole (300 million of us) ingest a total of approximately 8...
Mathematics, 17.07.2020 14:01
Mathematics, 17.07.2020 14:01
Mathematics, 17.07.2020 14:01
Mathematics, 17.07.2020 14:01
Mathematics, 17.07.2020 14:01
Mathematics, 17.07.2020 14:01
Mathematics, 17.07.2020 14:01
Mathematics, 17.07.2020 14:01
History, 17.07.2020 14:01
Mathematics, 17.07.2020 14:01