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Air is compressed steadily by a 5-kW compressor from 100
Chapter 7, Problem 80P(choose chapter or problem)
Air is compressed steadily by a \(5 \mathrm{~kW}\) compressor from \(100 \mathrm{kPa}\) and \(17^{\circ} \mathrm{C}\) to \(600 \mathrm{kPa}\) and \(167^{\circ} \mathrm{C}\) at a rate of \(1.6 \mathrm{~kg} / \mathrm{min}\). During this process, some heat transfer takes place between the compressor and the surrounding medium at \(17^{\circ} \mathrm{C}\). Determine the rate of entropy change of air during this process.
Equation Transcription:
17°C
Text Transcription:
5-kW
100 kPa
600 kPa
1.6 kg/min
17 degree celsius
Questions & Answers
QUESTION:
Air is compressed steadily by a \(5 \mathrm{~kW}\) compressor from \(100 \mathrm{kPa}\) and \(17^{\circ} \mathrm{C}\) to \(600 \mathrm{kPa}\) and \(167^{\circ} \mathrm{C}\) at a rate of \(1.6 \mathrm{~kg} / \mathrm{min}\). During this process, some heat transfer takes place between the compressor and the surrounding medium at \(17^{\circ} \mathrm{C}\). Determine the rate of entropy change of air during this process.
Equation Transcription:
17°C
Text Transcription:
5-kW
100 kPa
600 kPa
1.6 kg/min
17 degree celsius
ANSWER:
Step by step solution Step 1 of 2Write the following from table A-1: “molar mass, gas constant, and critical pointproperties”.Gas constant,Write the following properties from the steam tables A-17 “ideal properties of air”At temperature,Pressure at state 1,Entropy at state 1,\nWrite the following properties from the steam tables A-17 “ideal properties of air”.At temperature at state2,Pressure at state2,Entropy at state 2,