(a) The characteristic that determines the metal's color. (b) The characteristic that determines the non-metal's color.

Question

Want to see the full answer?

Answer 1

Question

Chapter 21, Problem 19QAP

To determine

To explain:

(a) The characteristic that determines the metal's color.

(b) The characteristic that determines the non-metal's color.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Three alternatives are being considered for an air cleaning system. All three systems have a lifeof 10 years with no salvage value. System A has an initial cost of $29,000. During the first fiveyears of operation, the annual costs to operate system A are $5,000. During the second five years,the annual cost of system A increases to $16,000. System B has an initial cost of $43,000. Theannual cost to operate system B is $4,000, however, after the first year, this cost increases by$1,600 per year. System C has an initial cost of $58,000 with an annual cost of $2,400. System Crequires two upgrades: one during year 4 which costs $6,000, and the other during year 8 whichcosts $3,000. The MARR for this project is 17%. Determine which air cleaning system should beinstalled based on an economic analysis.

Methylamine is used in the manufacturing of several various pharmaceutical products. Atone facility, there is a 2000 lbm tank of methylamine. If the entire tank is releasedcontinuously during a 20-minute time period, determine the concentration in ppm at adistance 1 mile directly downwind. Does this exceed published exposure limits formethylamine? Assume the release is at ground level, and it is an overcast night with a 5mph wind.

Emergency response for the rupture of an ammonia pipeline is being planned. Themaximum estimated flow rate from the rupture is 20 kg/s. Local authorities havedetermined that evacuations are necessary if the concentration exceeds the ERPG-2 level.Assume a temperature of 20˚C, wind speed of 3 m/s, atmospheric pressure of 1 atm, 70%cloud cover and rural conditions. State any other assumptions.a. How far directly downwind needs to be evacuated?b. Using a spreadsheet (such as excel), draw a plot of the isopleth at thisconcentration. You should have at least 8 different distances downwind markedon your plot.