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One mole of air at 2 7 C and 5 0 0 kPa in a 1 0 0 kPa atmosphere expands to 1 0 0
One mole of air at C and kPa in a kPa atmosphere expands to kPa by free expansion in a piston cylinder device. After the expansion, the air in the device reaches an equilibrium temperature by transferring hear from the surrounding air, which has a temperature of C
i What is Sgen?
m As an alternative way to find Sgen, write down the integrated closedsystem entropy balance and use the numbers you calculated above for Delta Ssys and Qsys to calculate Sgen.
n You also might consider an alternative approach to compute Qsys Treat the surroundings as a system of its own and perform an energy balance on the surroundings. It will also show QsysWsys where work is computed using constant P expression.
My calculations
Delta Ssys JK
Delta Ssur JK
Wsur J Qsur J
Wsys J Qsys J
Delta STotal JK
For i Provide the chemical engineering definition of Sgen.
For m Calculate Sgen using the provided calculations, these correctly calculated.
For n Utilize a different approach on computing Qsys
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