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An insulated rigid tank is divided into two equal parts by a partition. Initially, one part contains 4 kg of an ideal gas at 800 kPa and 50°C, and the other part is evacuated. The partition is now removed, and the gas expands into the entire tank. Determine the final temperature and pressure in the tank.
You are preparing a life-cycle assessment of different transportation options for getting from your house to work (10 miles each way). The options include carpooling with three or more people, one person in a car, bicycling, or taking the bus.
Calculate the expected rate of flow (in liters/sec) when the sand is clean Calculate the expected rate of flow (in liters/sec) when the sand needs to be backwashed.
Calculate the dry unit weight
A surveyor is going to take a 5.5 mile sight across a lake from the top of one tower to a target on the top of another tower. It is desired to keep the line of sight 6 ft above the lake surface.
A gas solution has the following composition, Oxygen = 35 g Nitrogen = 40 g Neon = 25 g Calculate mass fractions of all components. If you remove Neon, how much you have to remove to reduce mass fraction to 0.1
What is tertiary treatment? Give two examples of tertiary treatment techniques and what is a maturation pond and what is its primary purpose in wastewatertreatment - What would be the key water quality parameters
In this case, it seems clear why Johnson is tempted to omit references to the ambiguous data. He is understandably anxious to graduate and move on to other challenges in his professional life. He is worried that full disclosure of his findings could ..
Two reservoirs are connected by a pipeline. The pipeline is 1 m in diameter and has a friction factor of 0.03. The elevation difference between the reservoirs is 30 m. The two reservoirs are 5 km apart.
If clean groundwater flows through an aquifer contaminated with a dense non- aqueous phase liquid (DNAPL), calculate the concentration of DNAPL in the water as a function of time if the DNAPL is dissolving into the water at a rate of k1
Calculate and compare the ozone concentration in ug/m^3 for a polluted day in Mexico City (210 ppbv ozone, 30 C, 0.77 atmospheres pressure) and the ozone concentration in the stratosphere (8 ppmv ozone at 30 km). Use the Standard Atmosphere to get pr..
A container weights 2.06lb. It is filled with 1.09ft^3 of water at 25 degrees Cel. What is the final weight in pounds and newtons
The velocity and pressure are given at two points in the flow field. Assume that the two points lie in a horizontal plane and that the fluid density is uniform in the flow field and is equal to 1000 kg/m^3. assume steady flow. Then, given these data,..
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