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Reconsider Prob. 4-16. Using the EES (or other) software, plot the process described in the problem on a P-V diagram, and investigate the effect of the poly-tropic exponent n on the boundary work. Let the poly-tropic exponent vary from 1.1 to 1.6. Plot the boundary work versus the poly-tropic exponent, and discuss the results.
Prob. 4-16
processes in piston-cylinder devices, the gases have been observed to satisfy the relationship PVn =C, where n and C are constants. Calculate the work done when a gas expands from 150 kPa and 0.03 m3 to a final volume of 0.2 m3 for the case of n= 1.3.
A permeability test was run on a cylindrical soil sample with a length of 175 mm, and a diameter of 75 mm. After 90 seconds, discharge was 300 cm3 under constant head of 41 cm. The sample had a dry mass of 850 g and its ?s was 2.60 g/cm3. Calculate (..
Is it possible to have a copper-silver alloy of composition 50 wt% Ag-50 wt% Cu that at equilibrium, consists of α and β phases having mass fractions Wα = 0.60 and Wβ=0.40
Find an estimate of the concentration of CO at 6 PM if there was no CO in the air at 4 PM. (Assume that CO is conservative and that there is instantaneous and complete mixing in the box)
Biota can uptake and bioconcentrate compounds through vapor phase absorption. For example, leaves exposed to elemental mercury vapors will absorb the mercury into the aqueous phase and the lipid phases of the leaves. Kow for mercury = 4.17.
Determine the surface area of a primary settling tank sized to be handle a maximum hourly flow of 0.570 m3/s at an overflow rate of 60 m/day.If the effective tank depth is 3.0 m,what is the effective theoretical detention time?
Name two methods used in analysing structural members in civil engineering
A clear definition of the problem.
Describe the present land capability classification system for agriculture in the caribbean, Identifying its limitations and propose recommendations. 200 word limit
A waste mixture contains a variety of volatile organic compounds, nonvolatile organics, metals, and sandy soil. In a vitrification treatment,
Calculate the time of flight of the bolt from the ceiling tothe floor. Assume that the elevator continues its upward acceleration. (Use a frame reference fixed with respect to the elevatorshaft)
A horizontal channel 4 m wide carries a discharge of 16 m3/s. Determine whether a jump may occur at an initial depth of 0.5 m or not. If a hydraulic jump occurs, determine the sequent depth (conjugate depth) to this initial depth. Also determine the ..
A municipal water plant has four filters that are each 20 ft long by 15 ft wide by 5 ft deep. The demand for water requires that they only operate, on average, three filters per day at a loading of 3 gallons per min / ft^2.
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