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The adjoining figure illustrates a piston-cylinder arrangement. This cylinder contains helium at 21oC and 1.379 MPa. The gas is compressed suddenly from 98 to 82 cm3 because of the The Pennsylvania State University Page 1 of 2 https://en.wikipedia.org/wiki/Space_Shuttle piston's weight, with the final temperature reaching 27oC. (Molecular weight of helium = 4 gm/mol; Ru = 8.314 J/mol-K) A) Determine the final pressure. (8) B) Was the compression undergone by the gas a quasi-equilibrium process? Provide a viable reasoning behind your answer. (2) C) The piston of this cylinder has a cross-sectional area of 0.029 m2. Atmospheric pressure is 0.1035MPa and the acceleration due to gravity is 30.1 ft/s2. The system is in static mechanical equilibrium after the gas is compressed to 82 cm3. What is the mass (kg) of the piston?
Questions set on Entropy, Exergy, Cycles, Otto Cycle, Rankine Cycle. In a coal fired thermal power station, indicate where the exergy contained in the coal is destroyed. For each exergy destruction mechanism, explain whether there is a small..
Hollow shaft transmitting power with shear limits. Design a hollow steel shaft to transmit 300 hp at 75 rpm without exceeding a shear tress of 8000 psi. Use 1.2:1 as the ratio of the outside diameter to the inside diameter.
the net contents in ounces of canned soup is a random varialbe with probability distribution fx 4x-11.75 11.75 lt x lt
We're asked to determine the deflection of a beam location for a 2000N load. However the force is directed up the corner NOT centroid.
the collars are pin connected at b and are free to move along rod oa and the curved guide oc having the shape of a
Estimate the mass of the gas in the tank in kg assuming the gas behaves as an ideal gas. If the gas warms up to 35 deg C as it sits in the sun all day, what would the pressure rise to?
Determine the power generated by the motor M at this instant if it operates with an efficiency of epsilon = 0.8.
determine the force exerted by each cylinder in raising the crate for u = 60°, a 5 0.70 m, and L = 3.20 m. Show that the result obtained is independent of the distance d.
A gasoline engine is modeled as an Otto cycle. It has at temperature and pressure at the beginning of compression of 10°C and 90 kPa. The compression ratio is 7 and the specific energy added to the air during the heat addition process is 1432.46 ..
a modified brayton cycle is to be analyzed using the air-standard assumption with constant specific heats at a
assignment 1problem 1determine the analytical solution for the maximum stress of the beam shown compare with stress
1. for each of the two proposed replacement presses determinenbspa. initial investment.nbspb. operating cash inflows.
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