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A piston-cylinder arrangement initially contains water at P = 300 psia and T = 500 oF. 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) Find the work done per pound of water during the expansion. (b) Find the heat transfer per pound of water during the expansion. (c) Find the value of the enthalpy of the water after expansion.
an ocean thermal energy conversion otec system is proposed to generate 10 mw of electricity. the proposed location of
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argon is compressed isothermally from 100c at 1 atm to 4 atm. calculate the final temperature and the specific work
it turns out that the fluid-mechanical drag coefficienput value and the drag coeffeicient depends on reynolds number re
a pressure vessel of radius 10.4 in is filled with a gas at a pressure of 525.0 psi gauge. the top of the vessel is
The atomic radii of a divalent cation and a monovalent anion are 0.77 nm and 0.136 nm, respectively. Calculate the force of attraction between these two ions at their equilibrium interionic separation.
as the airplane begins its takeoff run at t 0. the normal forces exerted on its tires at a and b are na 4.2 kn and nb
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the potential energy term which describes the bonding between dissimilar ions in an ionic solid may be given as
a double-rod cylinder is one in which the rod extends out of the cylinder at both ends. such a cylinder with a 3in
the wheel of a crane lift is rolling on a flat rail. the radius of the wheel is 4 in the contact length and force are
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