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Using EES (or other) software, write a program to determine the entropy change of a mixture of three ideal gases when the mass fractions and other properties of the constituent gases are given. Run the program for a sample case, and give the results.
A drinking water system treats a flow of 3000 gallons per minute. Consider disinfection of a bacteria by ozone with an inactivation constant of K=0.06/min. To reduce the number of bacteria from 400 bact/ml to 4 bact/ml.
A 1047 steel plate is subjected to a tensile stress of 120 MPa. Given its fracture toughness is 45 MPa?m and Y = 1, (a) Determine the critical crack length to assure the plate will not fail under static loading.
FeCl3 is added to remove excess phosphate. The following reactions occur (the charges are in parentheses): FeCl3 -> Fe(3+) + 3Cl(-) Fe(3+) + PO4(3-) -> FePO4 The equilibrium constant for the second reaction is 10^26.4.
An Engineer is considering the development of a small wind turbine (D=1.25m) for home applications. The design wind speed is 15 mph at T=10C and p=0.9 bar. The efficiency of the turbine is n=20% meaning that 20% of the kinetic energy in the wind can ..
The letter size is such that the sign can be ready by a person with 20/20 vision from a distance of 200 ft. Does the subject driver have enough time to read the sign at a speed of 30 mi/h
What is the theoretical maximum amount of work that could be done by a gas in a piston expanding from 10 L to 20 L (pressure of the surrounding atmosphere is 100 KPa)? What assumptions do you have to make to achieve this theoretical maximum? How much..
What are the quantitative measures of reliability (discuss measures for hardware, software, personnel, facilities, and data)?
A series of small packages, each with a mass of 0.5 kg, are discharged from a conveyor belt. Knowing that the coefficient of static friction between each package and the conveyor belt is 0.4, determine (a) the force exerted by the belt on the package
Determine the forces in the members for the pinned jointed frame shown in Figure Question 1, using the method of virtual work. All members have the same EA.
a 25-ft long crane supported at its lower end by a pin is elevated by a horizontal cable as shown in the figure. a
Determine the horizontal and vertical components of reaction at the pin supports at A and B and indicate direction. Take F1 = 7 KN, F2 = 6 KN, and h = 1 m.
The platform itself weights 30 kN in air, and each cylinder weighs 1.0 kN per meter of length. What total cylinder length L is required for the platform to float 1 m above the water surface
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