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A cylinder of cross-sectional area A is divided inot tow chambers 1 and 2, by means of a frictionless piston. The piston as well as the walls of the chambers are heat-insulating, and the chambers initially have equal length L. Both chambers are filled with 1 mol of helium gas, with initial pressures 2Po and Po, respectively. The piston is then allowed to slide freely, whereupon the gas in chamber 1 pushes the piston a distance a to equalize the pressures to P. (a) Find the distance a traveled by the piston. (b) If W is the work done by the gas chamber 1, what are the final temperatures T1 and T2 in the two chambers? What is the final pressure P? (c) Find W, the work done.
a stack gas flowing at 80 m3min at t 25 degree c and 1 atm contains approximately 75 n2 5 o2 8 h2o and 12 co2. a
Water flows at a rate of 20 l/s through a horz pipe dia .03 m. The pressure drop across the valve in the pipe is measured to be 2 kPa. Determine the irreversible head loss of the valve, and the useful pumping power needed to overcome the resulting..
determine the optimal pressures, temperatures, and fraction of steam extracted to maximize thermal efficiency.
the 50 kg wheel is a solid circular disk which rolls on the horizontal plane in a circle of 600mm radius. the wheel
Gear A rotates with an angular velocity of 100 rpm clockwise. Knowing that the angular velocity of arm AB is 50 rpm counterclockwise, determine the corresponding angular velocity of gear B.
water is pumped from a lower reservoir to a higher reservoir by a pump that provides 21 kw of shaft power. the free
find the cartesian components of force p acting in the x y and z directions given p20n alpha 134.5 deg beta 55.0 deg
a research facility on the moon will include a series of canals connected to a central lake which will simultaneously
a projectile is fired at an angle of 62deg from the horizontal with a velocity of 704 ftsec. if it lands 4.75 seconds
a uniform rod ab of length 3m and mass 20kg is suspended with its end b against a vertical wall while its end a is
two of the three velocity components for an incompressible flow are u x2 2xz vy22 yz what is the general form of the
(a) Determine the surface temperatures on the two sides of the circuit board.
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