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1. Ammonia (NH3) is contained in a sealed rigid tank at 0?C, x = 50% and is then heated to 100?C. Find the final state P2, u2 and the specific work and heat transfer.
2. A piston/cylinder system contains 50 L of air at 300?C, 100 kPa, with the piston initially on a set of stops. A total external constant force acts on the piston, so the balancing pressure inside should be 200 kPa. The cylinder is made of 2 kg of steel initially at 1300?C. The system is insulated so that heat transfer occurs only between the steel cylinder and the air. The system comes to equilibrium. Find the final temperature and the work done by the air in the process and plot the process P-V diagram.
. In order to get full credit for this problem you must list all unknown species that would exist in the raindrop and all pertinent equations regardless of their level of significance. You must algebraically solve the equations to determine pH.
Calculate the concentration of oxygen in the water in equilibrium (in mg/L) with the atmosphere near La Paz, Bolivia (3650 m), at 20 degrees Celcius.
A plane flow field is developed by the addition of a free vortex and a uniform stream in the positive x direction. If the vortex is located a distance a from the origin, determine the pressure variation in the flow field
Provide functions to sort the strings into alphabetical order, using variations of the bsort() and order() functions from the PTRSORT program in this chapter. Sort the pointers to the strings, not the actual strings.
a manufacturer of rat poison in texas proposes to build a circular lagoon to concentrate the arsenic in its rinse water
Determine the volumetric analysis of the mixture and the apparent gas constant.
Offer an explanation as to why covalently bonded materials are generally less dense than ionically or metallically bonded ones.
Above the water table the soil mass unit weight is 16 kN/m^2. Below the water table the saturated unit weight is 19.5kN/m^2. The maximum column load is 330,000 lbs. Recommend the number and depth of borings.
The pressure gage on an airplane flying overhead indicates that the atmospheric pressure at that point is 9.7 psia and that the air temperature is 42 deg. Fahrenheit. Assume a linear decrease of temperature with elevation
How resistant is the stud to twisting? How is this resistance increased as the building is completed?
A 4 meter long steel plate with a rectangular cross section (10mm x 50mm) is resting on a frictionless surface under the sun. The plate temperature is measured to be at 40 degrees Celsius.
A confined auquifer with a porosity of 0.15 is 30 m thick. The potentiometric surface elevations at two observation wells 1000 m apart are 52.35 m and 56.90 m. If the horizontal hydraulic conductivity of the auquifer is 25 m/ day determine the flow r..
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