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Complete the following exercises. In each case locate the state on sketches of the T-v and p-v diagrams. Four kg of water at 100degreeC fill a closed container having a volume of 1 m3. If the water at this state is a vapor, determine the pressure, in bar. If the water is a two-phase liquid-vapor mixture, determine the quality. Ammonia at a pressure of 40 lbf/in. 2 has a specific internal energy of 308.75 Btu/lb. Determine the specific volume at the state, in ft3/lb.
steam enters an insulated turbine at 100 bar 400oc. at the exit the pressure and quality are 200 kpa and 0.66
a mixing chamber receives 3kgmin ammonia as saturated liquid at -20 c from one line and ammonia at 40 c 300 kpa from
a 10 m3 oxygen tank is at 15 degree c and 800 kpa. the valve is opened and some oxygen is allowed to escape until the
consider the arrangement described in problem 1. a cable attached to the 100 lbm piston exerts a 200 lb force upward on
a gas mixture consists of o2 and n2. the ratio of the mole numbers of nitrogen to oxygen is 31. this mixture is heated
A state runs a lottery in which 6 numbers are randomly selected from 40, without replacement. A player chooses 6 numbers before the state's sample is selected.
Also determine the axial force and deformation of the diameter due to temperature rise. Let E = 120 GPa and Co-efficient of linear thermal expansion = 0.0000168 per °C.
the maximum allowable temperature of a working fluid is usually determined by metallurgical considerations. in a
a 3000-lb car accelerates under constant power from 60 mileh to 90 mileh on a 0.25 mile straight level test track.
Determine a structures natural frequency. Sketch a typical time wave response curve of such a test, then label the impact point and indicate the test piece's natural frequency on the time waveform.
a particulate monitor has a power supply consisting of two batteries in parallel. either battery is adequate to
Determine the time taken for the crate to come to a rest and the distance travelled if the coefficient of dynamic friction is 0.4
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