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The final pressure is 1.4 MPa. Determine the work and the heat transfer for the process (both in kJ/kg), assuming ideal gas behavior.
How does the total free energy for transformation (?Gtotal) vary for a liquid-solid transformation versus that for a solid-solid transformation? Write down the expressions for??Gtotal for both case
Categorize the different types of diffusional solid-solid phase transformations based on the typical diffusion distances involved in the transformation.
Determine the heat transferred and the work done (both in kJ/kg) when saturated water vapor in a closed system is condensed by cooling it to saturated liquid at constant pressure of 40 kPa.
Methane at 6 MPa and 245 K is heated at a constant pressure until its volume has increased by 90 percent. Determine the final temperature using the ideal gas equation of state.
Oxygen is stored in a rigid tank with a volume of 10 m3 . The pressure and temperature in the morning are measured as 120 KPa and 20oC, respectively. As a result of solar heating, the temperature in
If the turbine power putputs is 20 MW and the thermal loss from the turbine to the ambien can be ignored, determine the mass flow rate (Kg/s) through the turbine.
Find the time at which particle A and B collide. Compute the acceleration of particle B before the collision. express answer in t hut, n hut, b hut coordinate system
A strain rosette with measurements in the direction of the applied unidirectional force, perpendicular and at 45 degrees is employed to measure strains on the free surface of aluminum alloy part wit
Consider a piston-cylinder arrangement containing 5.057 X 10^-4 kg of dry air. For an isothermal expansion process determine the quantity of work performed by or on the air in the cylinder.
A composite material is to be made of tungsten wire aligned in a single direction in a nickel matrix. The elastic modulus perpendicular to the fibers must be at least 250Gpa. What is the correspondi
Aluminum-copper alloy(96 atom% Al; 4 atom% Cu) is solution-annealed at 550C and then aged at 450C. Calcuate the time required to grow the precipitate half-thickness from X=0 to x=1E-6m.
Calculate the (instantaneous) oxidation rate (m/s and mm/year) at t = 800hours. (t from the onset of oxidation). Calculate the time required for the oxide layer to grow from 0 m thick at t=0 to 0.002
A 40 foot long aluminum street lighting support is sized and welded into position between two very large bridge beams on a hot summer day when the temperature of the aluminum support is 125 degrees
A steam power plant operates on a Rankine cycle with reheat. Steam enters the turbine at 600 psia and 700 F. Steam is removed at 300 psia for reheat. The turbine exhausts at 20 psia.
Two kilograms of steam at 300 kPa and a quality of 75% are heated in a closed container until a pressure of 600 kPa is reached. Determine the final temperature of the steam aand the heat input. Fin
Sketch a system of mass (m) which is accleerated from rest to a velocity v2, raised to a height of elevation (H), and cooled and compresed from state 1 to state 2.
A ball rolls on the interior of a paraboloid of revolution given by x^2+y^2=cz. The angle of rotation about Z axis is theta=4(pi)(sin^2(omega)(t)), and the elevation of the ball is z=b(theta), wher
Its coefficient of thermal expansion is 56.56*10^-5/ degress celsius, compute the internal resistance in the wire at 24.8 degrees celsius to the nearest ohm.
The fluid viscosity u at any point in the boundary layer depends on the distance y of the point above the surface, the free stream velocity U and free stream velocity gradient dU/dx, the fluid kinem
At what distance must the cheetah relative to the antelope be when the chase begins if the cheetah catches the antelope in 15 seconds?
A motorist decreases the speed of an automobile at a constant rate from 45 to 30 mi/h over a distance of 750 ft along a curve of 1500-ft radius.
A Hot water stream at 80o C enters a mixing chamber with a mass flow of 0.5 Kg/s where it is mixed with a stream of cold water at 20o C. If it is desired that the mixture leave the chamber at 42oC,
Determine the difference between these values and the corresponding static values in the undisturbed atmosphere ahead of the airplane.
An adiabatic capillary tube is used in some refrigeration systems to drop the pressure of the refrigerant from the condenser level to the evaporator level.