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Air is compressed steadily by a 5-kw compressor from 100 kpa and 17⁰c to 600 kpa and 167⁰c at a rate of 1.6 kg/min. during this process, some heat transfer takes place between the compressor and the surrounding medium at 17⁰c. determine the rate of entropy change of air during this process.

User Max Sinev
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Final answer:

The rate of entropy change of air during the compression process in a compressor can be calculated using the formula for entropy change (ΔS = ΔQ/T), applying the principles of thermodynamics and the ideal gas properties of air.

Step-by-step explanation:

The student is asking about the rate of entropy change of air during a compression process in a compressor. This is a typical thermodynamics problem in physics that deals with the concepts of energy transfer, entropy, and state changes of gasses.

To determine the rate of entropy change of the air, one would have to consider both the heat transfer involved and the compressed air's change in volume and temperature. The specific entropy change can be calculated using thermodynamic principles and the properties of the air before and after the compression process, considering it as an ideal gas.

You should use the formula:

ΔS = ΔQ/T

where ΔS is the entropy change, ΔQ is the heat transfer, and T is the temperature (in Kelvin). Keep in mind that the specific heats at constant pressure and volume (Cp and Cv) and the temperatures should also be used to find ΔQ, which then allows you to compute the entropy change.

User Egridasov
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