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In absorption refrigeration systems, a two-phase equilibrium mixture of liquid ammonia (NH3) and water (H2O) is frequently used. Consider a liquid-vapor mixture of ammonia and water in equilibrium at 30°C. If the composition of the liquid phase is 60 percent NH3 and 40 percent H2O by mole numbers, determine the composition of the vapor phase of this mixture. Saturation pressure of NH3 at 30°C is 1167.4 kPa.
House chilled water is available for cooling coming from 6-in dia. chilled water line carrying chilled water at approximate constant 40 degree F temperature. Chilled water pressure in the 6-inch line is 110psig.
Explain the difference between materials considered to have "homogeneous" and "isotropic" material properties. Give examples of materials that are considered isotropic
Determine the internal pressure that would cause yielding of the cylindrical thin walled pressure vessel. The ends are capped. The pressure vessel is made ofA36 steel.
Design a hollow steel shaft with an inside diameter 1/3 that of the outside diameter. The shaft transmits 200 kW at a speed of 20 Hz. The allowable shearing stress is 55 MPa, and the allowable angle of twist is 1 degree per meter of length.
how large a sample must we take in order to be a) 95% b) 90% c) 99 d) 99.73% confident that the error in the estimated mean lifetime will not exceed 20 hours.
A ten-foot high wall will retain a medium dense sand backfill. Determine the Rankine earth pressure diagram and the total active force on the wall.
compute the maximum acceptable tensile load pu on an angle l6x4x34 when connected to both legs. the 4 in. leg contains
A traffic signal control is being designed for a four-leg intersection on a divided highway with the characteristics shown in the table below. Determine an appropriate length of the yellow interval for each approach and how you will provide it.
Bike comes in many forms, each aimed at a particular sector of the market such as Sprint bikes and Mountain bikes - Use your judgement to identify the primary objective and the constraints that must be met for each of these
The cantilevered wild- flange steel beam is subjected to the concentrated force P at its end. Determine the largest magnitude of this force so that the bending stress developed at A does not exceed 180 MPa.
What are the basic differences between the AFL as a labor union and the CIO type of union?
A 25' wide and 35' high concrete dam with a 25' deep and .3' wide cutoff wall at theupstream end of the dam is retaining 25' of water. Bottom of this dam is 5' below the surface of the soil. Assuming zero tail water, please answer the following quest..
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