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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.
the rotor of an electric motor has a mass of 25kg and a radius of gyration of 180mm. it is observed that 4.2 min is
calculate the vapor pressure-temperature relationship of liquid iron.
A new cast iron pipe is 5 km long and 15 mm diameter is used to convey water at a rate of 0.0150m3s-1. Given the absolute roughness of the pipe is 0.26 mm, density of water is 998 kg/m3 and dynamic viscosity of water is 1.14 × 10-3 kgm 1s-1.
an aluminum thin-walled cylinder is 40 mm id inner diameter by 50mm od outer diameter and is subjected to an internal
an engineer has proposed that a simple ideal rankine cycle that uses refrigerant 134a be used to produce work with heat
you deposit 10000 in a savings account that earns 7.5 simple interest per year. what is the minimum number of years you
steam expands in a turbine steadily at a rate of 25000 kgh entering at 6 mpa and 450? and leaving at 20 kpa as
the molar volume cm3mol of a binary liquid mixture at t and p is given by v 120x170x215x18x2x1x2a find expressions for
determine the center deflection of a clamped circular plate subjected to a point load q 0 at a distance b from the
what is the specific volume of water at 50 mpa and 80 degrees celcius. what would it be if the incompressible liquid
A steady flow air compressor compresses 50 lb/min from 14 psia and 80 degrees F to a discharge state at 45 psia and 300 degrees F. Heat departs from the air only via circulating water that enters the jacket at 75 degrees F and leaves at 95 degrees..
a centrigugal pump having a 6-in-diameter impeller and the characteristics is to be used to pump gasoline through a
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