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1. A heavily insulated cylinder/piston contains ammonia at 1200 kPa, 60?C. The piston is moved, expanding the ammonia in a reversible process until the temperature is -20?C. During the process, 200 kJ of work is given out by the ammonia. What was the initial volume of the cylinder?
2. Water at 1000 kPa, 250?C is brought to saturated vapor in a piston/cylinder with an isothermal process. Find the specific work and heat transfer. Estimate the specific work from the area in the P-v diagram and compare it to the correct value.
What is the risk of constructing a harbor which will be unprotected from wave attack during its construction.
Find the length and width of a square basin for virus disinfection of a flow of 6 MGD. You may assume a depth of 5 ft, a C?t product of 10 (mg/L) ?min for 1.5-log removal, and a target free chlorine residual of 0.6 mg/L.
The footing has a f'c=3000psi. Assume the the footing base is 5 ft below the grade and the soil is 100 lb/ft with an allowable pressure of 4500lb/ft fy=60,000
Each wheel of an automobile has a weight of 48 lb, a diameter of 23 in., and a radius of gyration of 9 in. The automobile travels around an unbanked curve of radius 450 ft at a speed of 65 mi/h.
determine the pressure head at the nozzle inlet to produce a water jet velocity of 40 ft/s. Neglect the friction loss and assume incompressible flow.
Perform this calculation using cylindrical coordinates. Cylindrical coordinates are the same as polar coordinates, with the addition of a third, z-axis.Recommend that the z-axis be placed up the axis of rotation for ?.
A first order reaction occurs in a PFR at the rate of 2.1 hr^-1. The reactor volume is 1400L and flow is 15 gpm. If the influent concentration is 200 mg/L, then what is the effluent concentration?
Segment A of the composite beam is made from 2014-T6 aluminum alloy and segment B is A-36 steel. If w = 0.9 kip/ft, determine the absolute maximum bending stress developed in the aluminum and steel. Sketch the stress distribution on the cross sect..
If the geodetic azimuth of a line is 18°47'20.1", the convergence angle is -1°08'06.8" and the arc-to-chord correction is -1.5", what is the equivalent grid azimuth for the line?
If the effective stack height of the plant is 100 m, and the ground reflects the SO2 emission perfectly what is the SO2 concentration at a sampling point located 2 m above the ground in the town.
What type of basin in which is stored and what is silos what is channel and correcting basins what type of clinker is formed
what is the distiniction b/n point and non point sources of water pollution and thier varation with surface and ground water?
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