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A rigid insulated container has two rooms separated by a membrane. Room A contains 1 kg air at 200oC and room B has 1.5 kg air at 20oC, both rooms at 100 kPa. Consider two different cases
1) Heat transfer between A and B creates a final uniform T.
2) The membrane breaks and the air comes to a uniform state. For both cases find the final temperature. Are the two processes reversible and different? Explain.
a piston-cylinder device contains 0.167 kg of air initially at 2.2 mpa and 344degc. the air is first expanded
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a 0.15-m-diameter pulley turns a belt rotating the driveshaft of a power plant pump. the torque applied by the belt on
Design a process for the manufacture of 10^6 kg per year of mayonnaise. the shelf life of the product is expected to be 1 year. You need to complete the following in your design.
steam flows through a small turbine at a rate of 10000 kgh entering at 600 degc and 2.0 mpa and emerging at 0.01 mpa
an ideal gas cp5.1926 kjkgk cv3.1156 kjkgk is placed in a piston-cylinder apparatus. the mass of helium is 5kg and the
a small spherical ball is gently released from rest in a cylindrical tank completely filled with glycerine. the ball
An aquifer has a hydraulic conductivity of 12 ft/day and an effective porosity of 17% and is under a hydraulic gradient of 0.0055 m/m. Calculate the specific discharge in m/s. Calculate the average linear velocity in m/s.
an accelerometer was used to measure the vibrations of machinery. the sensor output was acquired during an experiment
A fire water system on an oil rig is supplied by an electric motor driving a mechanical pump. A fire detection system is installed that normally starts the motor automatically but which can be set to manual override. The electric motor is normally..
a potato is baked in an oven at 200degc. the potato is then removed from the oven and put on a table in the kitchen.
a spacecraft is in a circular equatorial orbit 1 of radius r0 and speed v0 about an unknown planet mu not equal to
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