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A 100L rigid tank contains nitrogen (N2) at 900K, 3 MPa. The tank is now coole to 100K. What are the work and heat transfer for this process?
Two kg water at 120C with a quality of 25% has its temperature raised 20C in a constant volume process. What are the heat transfer and work in the process?
Find expression for the isothermal compressibility and coefficient of thermal expansion for a fluid that is described by the van der waals equation of state. Expression should be in term of measurable properties.
Hypothesis testing is a well-structured process that consists of several logical steps, and it aims at refining a business decision.Hypothesis testing is a quite common technique used by researchers. With regard to hypothesis testing, answer the ..
The pressure gauge on a 2.5-m^3 oxygen tank reads 500 kPa. Determine the amount of oxygen in the tank if the temperature is 28 degrees C and the atmospheric pressure is 97 kPa.
A piston cylinder device contains about 0.25kg of saturated water liquid @ 125C. Now water is heated at constant pressure until it becomes saturated vapor. How much is the work done during this process? How much is the heat transfer into the system?
At the exit from the first stage nozzles the steam velocity is 244 m/s, specific volume 0.0686 m3 /kg, mean diameter 762 mm and steam angle 76o measured from the axial direction. Determine the nozzle height of this stage.
A 20 MW back-pressure steam turbine receives steam at stagnation pressure of 4 MPa and stagnation temperature of 300oC, exhausting from the last stage at stagnation pressure of 0.35 MPa. The turbine isentropic efficiency is 0.884, and mechanical loss..
Rigid steel tank with a volume of 1 m3 contains 2 kg of H2O initially at 400 kPa. Determine the initial temperature of the H2O
A frictionless piston-cylinder contains 3.0 kg of H2O and is initially at 300 kPa. The initial volume is 1.0 m3. The water is heated until the temperature is 300 C. If the volume within the system reaches 1.5 m3, the piston hits a set of stops and is..
A 90 kg pilot ejects from a plane and reaches a steady state velocity of 30 m/s with one parachute open. Neglect any air drag force on the pilot and assume that the air drag force can be modeled as an ideal damper i.e. linearly proportional to the ve..
the density and associated percent crysallinity for two nylon 66 materials are shown as follows compute the desities of
they are using temperature and that is throwing me off. my books examples use watts for the high and low temp sources
at a depth of 18360ft fillers on the deepwater horizon encountered fluid at a reservoir pressure of 8900 psia. in order
consider a solid bar in the shape of a hook shown in figure 1. a coordinate system is also shown. a load p is applied
air undergoes an isentropic process from a pressure of 3 bar 20degc to a pressure of 1 bar. compute the final
the baseball player a hits the baseball with va 40 fts and thetaa 52circ. when the ball is directly above of player b
suppose 550 g of aluminum which has been heated to 150 c is added to 100 g of water which is at a temperature of 25 c.
in cooling situations where the desired temperature range is large two refrigeration cycles can be stacked to create a
a flue passing hot exhaust gases has a square cross section 300mm to a side. the walls are constructed of refractory
water is to be pumped from a lake to a ranger station on the side of the mountain. the flow rate is to be 95 galmin
moist air initially at 70 percent humidity and 5 c is heated to 25c. the input flow rate is 3000 cubic meters per hour
a round compression member with both ends pinned and made of aisi cold-drawn steel sy441 mpa e207 gpa is to be used in
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