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Ten pounds-mass of R-22 is at an initial volume of 4.059 ft3 and pressure of 200 psia. It is compressed isobaric ally until its volume is two-thirds of its initial volume. The piston is then held in place as the refrigerant cools until its temperature is 70 F. Determine the heat transfer [Btu] and work transfer [Btu] for the two-step process. Also show the process on P-v state diagram.
a metal matrix composite consists of 6061 aluminum alloy that is reinforced with carbon fibers. the fibers are arranged
How the tensile stress and compressive stress result in the moment about neutral axis when the beam fails
consider a l0-plate fuel cell stack at an anode stoichiometry of 1.2 with 20 a current generated in the stack and a
in a pipe 0.3 m in diameter 0.3 m3s of water is pumped up a hill. on a hilltop elevation 48 m the line reduces to 0.2 m
suppose we take 25 i.i.d observations from normal distribution with population standard deviation known to be 30.
A 1.2Âm3 rigid tank contains nitrogen gas at 200 kPa and 350 K. Now heat is transferred to the nitrogen in the tank and the pressure of nitrogen rises to 900 kPa. The work done during this process is
one half cell of an electrochemical cell consists of a pure iron electrode in a solution of fe2 the other is a tin
an automobile traveling at 30 miles per hour on level pavement with a coefficient of kinetic friction of 0.6. weighs
a hot air balloon travels with the wind. the wind velocity is v6i 10j ms for the first hour and then it is 10i 5j ms
an ideal gas is compressed from a volume of 400 cm3 to a volume of 150 cm3 slowly and isothermally in a
A gas turbine receives a mixture having the following molar analysis: 10% CO2, 19% H2O, 71% N2 at 720 K, 0.35 MPa and a volumetric flow rate of 3.2 m3 /s. The mixture exits the turbine at 380 K, 0.11 MPa. For adiabatic operation with negligible kinet..
an object whose mass is 50 lb attached to a rope wound around a pulley. the radius of the pully is 3 in. if the mass
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