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4 Kg of air expands in an insulated cylinder from 1131 kPa and 327C to 100 kPa in a reversible manner. Determine the work output by (a) assuming contestant specific heats and (b) using ideal-gas table A.7.1
the acme company claims to have designed an adiabatic turbine that will produce 105btu per pound of steam. the
Saturated Steam is to be condensed on the shell side of a heat exchanger at 75°F. Cooling water enters the tubes at 50°F at a rate of 45 lbm/s and leaves at 65°F. Assuming the heat exchanger to be well-insulated, determine the rate of heat transfer i..
Superheated steam at 400°C and saturated water with a quality of 40% enter a mixing chamber at a pressure of 100 kPa. What is the required ratio of mass flow rate of superheated steam to mass flow rater of saturated water if at the exit to the mixin..
A well-insulated rigid tank contains 1 kg of air at 30°C. A paddle wheel rotates inside the tank and increases the temperature of the air to 60°C. If the environment is at 100 kPa and 25°C, determine the exergy destroyed and the minimum work input fo..
compare the work required at steady state to compress water vapor isentropically to 3 mpa from the saturated vapor
Calculate the delta velocity required to change the inclination of a circular orbit at 32,000 km altitude from a 28.5 degree inclination to an inclination of 45 degrees. Compute the propellant used if the satellite weighs 1200 lbs after the maneuver.
the piston diameter is dp 3 mm and the piston position is initially s1 5 cm from the bottom of the piston. at this
consider a steam turbine where steam enters with a pressure of 10 mpa and temperature 500 degc and expands
an alcohol solution contains 6 by mass ethanol. this solution is fed to a distillation column at a rate of 1000 kgh.
Two aqueous hydrogen bromide solutions containing 6.00 wt% HBr (SG = 1.0402) and 65.0 wt% HBr (SG = 1.7613) are mixed to form a 2.86 molar HBr solution (SG = 1.1557).
saturated water vapor at 11.91 bar enters an insulated throttling valve which drops the pressure to 1.50 bar. determine
If 300 Kg of air is pumped into a previously empty 100 m^3 tank, and the temperature of the air in the tank is 25 deg C, then what is the pressure in the tank in N/m^2?
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