A piston-cylinder system contains two regions (A and B) that are separated by a partition as shown in the figure. Each region contains air and the partition separating the regions is fixed in place and has negligible mass. The partition allows heat transfer between region A and B. Region A has a block of copper with a mass of meu= 0.5 kg that is fixed to the wall. The mass of the air in region B is 0.95 kg. Initially, in state 1, the volume and pressure in region B is VBI = 0.55 m and PBI = 250 kPa, respectively. In region A the initial pressure and volume of the air is PAI = 266 kPa and VAI = 0.9 m. In state 2, the volume in region B is reduced to VB2 0.3 m' and the pressure is increased to PB2 = 520 kPa. The piston-cylinder system is surrounded with insulation to prevent heat transfer to the surroundings. Treat air as an ideal gas. Determine the work from state 1 to state 2.

A piston-cylinder system contains two regions (A and B) that are separated by a partition as shown in the figure. Each region contains air and the partition separating the regions is fixed in place and has negligible mass. The partition allows heat transfer between region A and B. Region A has a block of copper with a mass of meu= 0.5 kg that is fixed to the wall. The mass of the air in region B is 0.95 kg. Initially, in state 1, the volume and pressure in region B is VBI = 0.55 m and PBI = 250 kPa, respectively. In region A the initial pressure and volume of the air is PAI = 266 kPa and VAI = 0.9 m. In state 2, the volume in region B is reduced to VB2 0.3 m' and the pressure is increased to PB2 = 520 kPa. The piston-cylinder system is surrounded with insulation to prevent heat transfer to the surroundings. Treat air as an ideal gas. Determine the work from state 1 to state 2.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Forming and Shaping

Metal forming is a category of metalworking process through which the material can be given the desired shape and size by subjecting it to plastic deformation, where the component undergoes bulk deformation process upon application of loads. Unlike the shearing and machining process, the material does not undergo up to a failure point as indicated in the stress-strain curve. Hence, the stresses induced during the forming process are greater than yield strength but less than the failure strength of the material. The process does not lead to the loss of material, so it can be said to be an economical process. During forming, the material is subjected to tensile forces, compressive forces, bending, and shearing loading conditions. The material should possess the property of ductility to undergo the forming process.

Question

Determine work from state 1 to state 2.

A piston-cylinder system contains two regions (A and B) that are separated by a partition as shown
in the figure. Each region contains air and the partition separating the regions is fixed in place and
has negligible mass. The partition allows heat transfer between region A and B. Region A has a
block of copper with a mass of meu= 0.5 kg that is fixed to the wall. The mass of the air in region
B is 0.95 kg. Initially, in state 1, the volume and pressure in region B is VBI = 0.55 m and PBI =
250 kPa, respectively. In region A the initial pressure and volume of the air is PAI = 266 kPa and
VAI = 0.9 m. In state 2, the volume in region B is reduced to VB2 = 0.3 m and the pressure is
increased to PB2 = 520 kPa. The piston-cylinder system is surrounded with insulation to prevent
heat transfer to the surroundings. Treat air as an ideal gas.
Determine the work from state 1 to state 2.
Fixed Partition
Copper Block
A
В
Piston
Insulation

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