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Twenty pounds of a gas mixture is contained in a tank with volume 30 cubic feet at 30 psia and 70 F. The gas mixture has volumetric analysis of twenty percent carbon dioxide, thirty percent oxygen, and fifty percent nitrogen.
a) Using constant-specific heat theory, find the final temperature if 400 Btu of heat is added to the gas mixture
b) Discuss how you would solve this problem using the gas tables (discuss only, do not solve).
an incompressible fluid flows past in a solid plate.the x and y coordinates are measured from the leading edge of the
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We want to produce 20 kg/s of saturated water vapor by mixing steam at 350oC with liquid water at 20oC. The adiabatic mixing process occurs at a constant pressure of 10 MPa. During the mixing process, a stirring mechanism does work on the mixture at ..
1-kg water in a frictionless piston-cylinder device is initially at 250 degrees Celsius and 300 kPa (state1). A total of 700 kJ of work is done on the water in order to isothermally reduce its volume to 1/20 of its initial volume (state 2). Determine..
a tank has two rooms separated by a membrane. room a has 1 kg air and volume 0.5 m3 room b has 0.75 m3 air with density
The tower is held in place by three cables. If the force of each cable acting on the tower is shown, determine the magnitude and coordinate direction angles of the resultant force. Take x = 20 m, y = 15 m
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A 20-centimeter wrench is used to loosen a bolt. The force is applied 0.20m from the bolt. It takes 50 new tons to loosen the bolt when the force is applied perpendicular to the wrench. How much force would it take if the force was applied at a 30-de..
A piston-cylinder device contains helium gas initially at 145 kPa, 20 degrees C, and 0.5 m^3. The helium is now compressed in a polytropic process (PV^n = constant) to 400 kPa and 140 degrees C. Determine the heat loss or gain during this process.
a primary settling tank is to be designed for a municipal wastewater treatment facility. the average design flow is 2
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