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A piston-cylinder arrangement initially contains water at P = 300 psia and T = 500oF. The piston is moved to a final position where the volume is twice the initial volume. During the piston movement there is a heat transfer to the water in such a way that the pressure in the cylinder remains constant. (a) sketch the process on a P-v diagram, indicating the relative position of the saturation curve. (b) find the work done per pound of water during the expansion. (c) find the heat transfer per pound of water during the expansion. (d) find the value of the enthalpy of the water after expansion.
A reversible heat engine operates between 875 K and 310 K and drives a reversible refrigerator operating between 310 K and 225 K. the engine receives 2000 kJ of heat and the net work output from the arrangement equals 350 kJ. make calculations for..
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..
air is constantly being recirculated throughout the me building. in the summer that air is also cooled using chilled
a pressurized water tank is used as a source of water for a fire hose. the pressure of the air in the top of the tank
If the filling is done rapidly, calculate the final temperature in the small cylinder, (a) assume that oxygen is an ideal gas with Cv= 5R/2 and (b) using accurate thermodynamic data for oxygen.
A cylindrical drill with radius r1 is used to bore vertically a hole through the centre of a sphere of radius r2.
determine the power of a pump if 2000 kgmin of water is compressed from 100 kpa to 1 mpa. the water density can be
Effect of pressure on temperature and density of air for an adiabatic process, The pressure is to be raised from atmospheric to 7 psi (4.83 bar). The process is adiabatic, and the volume is constant and unknown.
the entire assembly is placed in an environment whose temperature is 200c. determine the volume of chamber 1 when thermodynamic equillibrium has been estabilished.
canon at an angle 30 degree tube is rotating at an axes with anguar velocities w1 and w2 2 and 5 rad/s and tube blows a ball at b with constant rate 7 m/s . what is velocity and acceleration of ball at tube end ball is at distance of 3m from tube ..
What is the composition, in atom percent, of an alloy that consists of 5.5 wt% Pb and 94.5 wt% Sn?
A slotted disk and opto-interrupter outputs pulses at 62 HZ. The disk has only one slot cut in it. what is the rotating speed of the disk in rpm?
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