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A constant-volume tank contains 10 lbm of ammonia initially at 30 lbf/in^2 and 80(deg)F (539.67(deg)R). The ammonia is then cooled until its pressure drops to 10 lbf/in^2. Determine its entropy change from the initial state to the final state.
in a 150 mw steam turbine unit operating on an enhanced rankine cycle steam is delivered from the boiler to the high
a power cycle operates between hot and cold reservoirs at 1000 k and 300 k respectively. for each claimed set of data
germanium forms a substitutional solid solution with silicon. compute the weight percent of germanium that must be
An oven door consists of a layer of asbestos sandwiched between a layer of steel on the inner surface and a layer of wood on the outer face
plot the evolution of the height, h, of the stable boundary layer and the strength, delta thetas, as a function of time.
1. a fire hose nozzle has an orifice diameter of 1inch. according to some fire codes the nozzle must be capable of
a battery can be modeled as an ideal source with an internal resistance - a constant voltage source with the resistor
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a device with an inlet cross-sectional area of 1 ft2 receives oxygen flowing at m0.2 with pt100 psia and tt1000 ordmr.
two rigid tanks that are each 20 ft3 are connected by a line containing a control valve that is initially closed. tank
methane ch4 at 25 degree celcius 1 bar enters a furnace operating at steady state and burns completely with 240 of
jus before it lifts off a 10500 kg airplane is traveling at 60 fts. the total horizontal force exerted by the planes
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