Engineering, 06.05.2020 05:02 noemir42

A vertical piston-cylinder assembly contains argon. The piston has a mass of mass 25 kg and a face area of 0.005 m2. The mass of argon is 2.5 g, and initially the argon occupies a volume of 2.5 liters. The atmosphere exerts a pressure of 100 kPa on the top of the piston. During a process, the volume of the argon slowly decreases to 0.001 m3 as energy with a magnitude of 1 kJ is slowly removed by heat transfer. Determine the change in the specific internal energy of the argon, in kJ/kg, for this process. Assume the following:

a. g = 9.81 m/s^2
b. friction between the piston and the cylinder wall is negligible.
c. the change in the potential energy of the argon is negligible.
d. the change in the kinetic energy of the argon is negligible.

Answers: 1

Show answers

Another question on Engineering

Engineering, 03.07.2019 14:10

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Answers: 1

Answer

Engineering, 03.07.2019 23:20

Two technicians are discussing the intake air temperature (iat) sensor. technician a says that the computer uses the iat sensor as a backup to the engine coolant temperature (ect) sensor. technician b says that the powertrain control module (pcm) will subtract the calculated amount of fuel if the air measures hot. who is correct

Answers: 3

Answer

Engineering, 04.07.2019 18:10

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10

Answers: 1

Answer

Engineering, 04.07.2019 18:10

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.

Answers: 1

Answer

You know the right answer?

A vertical piston-cylinder assembly contains argon. The piston has a mass of mass 25 kg and a face a...

Questions