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Five kg of water is in a closed rigid container with a volume of 0.3935 m3 and a pressure of 5.0 MPa. Draw and label the states and process on a P-v diagram and determine the amount of heat removed and work done when the pressure is reduced to 1.5 MPa.
Water as a saturated vapor at 600 Â°F is contained in a piston-cylinder device that has an initial volume of 30 ft3. The device undergoes a constant temperature process, until the water reaches the saturated liquid condition. Draw and label the state..
Nitrogen in a piston-cylinder assembly undergoes a polytropic expansion process. Initially, nitrogen is at 125 C and 144 kPa. Then it is expanded to a state of 102 kPa and 90 C. determine the heat transfer and work for the process considering no chan..
A slow leak develops in an inner tube (volume, 0.5 ft3, temperature, 600F), wherein it takes 4 hours for the pressure to decrease from 30 to 25 psig. The mass flow rate of air per second under the conditions is given by 0.68pA/(RT)0.5, where the unit..
Explain how you would expect the strength and ductility of a crystalline material to change as the ASTM Grain size number change from 14 to 3.
Evaluate the concentration of vacancies in copper at 650C temperature. What temperature will be needed to heat treat copper such that the concentration of vacancies produced will be 1000 times more than the equilibrium concentration of vacancies at s..
Air at standard temperature and pressure flows through a horizontal galvanized iron pipe at a rate of 4.0 ft3/s. The pressure drop must not exceed 0.75 psi per 100 ft of pipe (and naturally we want to design the most economic pipe). What diameter sho..
What is the composition, in weight percent and atom percent, of an alloy that contains 105.0 kg iron, 20.3 kg of aluminium, and 2.0 kg of copper?
An insulated piston-cylinder assembly containing a fluid has a stirring device operated externally. The piston is frictionless, and the force holding it against the fluid is due to standard atmospheric pressure and a coil spring. The spring constant ..
A piston cylinder device initially contains 0.15-kg steam at 3.5 MPa, superheated by 5 C. Now the steam loses heat to the surroundings and the piston moves down, hitting a set of stops at which point the cylinder contains saturated liquid water. the ..
If have to do a material selection case study for a rice cooker outer body where can I find the necessary requirement specifications of the material?
an ordinary egg can be approximated as a 5.5-cm-diameter sphere. the egg is initially at a uniform temperature of 8c
what force would be required to start a 250lb crate sliding across a cement floor which has a coefficient of static
a liquid at 10 c kinematic viscosity of 1.30710-6 m2s is to flow from a roof-top reservoir to a tanker truck through a
a refrigerant 134a at 140 kpa and -10 degree celcius is compressed by an adiabatic 16kw compressor to an exit state of
Water drips at the rate of 5 drops per second from a leaking tap. Determine the vertical distance between two consecutive drops after the lower drop has attained a velocity of 3 m/s.
Calculate the exact integration result using Matlab symbolic tools and calculate the errors in calculating work done
determine the effective spring constant of the following sandwich of materials under compressive load. all are
A specimen of Aluminium having a rectangular cross section 10 mm x 12.7 mm is pulled in tension with 25,500 N force, producing only elastic deformation. Calculate the resulting strain.
a well-insulated chamber is divided in two parts my a thin membrane. the left side with a volume of 2000 cm3 is filled
a pitot-static tube is used to measure the airspeed of an airplane. the pitot tube is connected to a pressure sensing
it is 30degf outside. the temperature of the outside surface of a building is 33degf. the thickness of the building
air in the atmosphere is composed of primarily nitrogen oxygen and argon. the mole percents of the compounds are as
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