An unknown substance (m= 1.5 kg) in a closed piston-cylinder device undergoes an internally reversible heating process from saturated liquid (State 1) at 60°C to a saturated liquid-vapor mixture (State 2). Work done by the system during the process is 37 kJ. At 60°C sf = 0.91827 kJ/kg-K uf=258.87 kJ/kg, Sg = 1.6964 kJ/kg-K and ug = 480.30 kJ/kg. Calculate change in specific entropy during the process, in kJ/kg-K.

An unknown substance (m= 1.5 kg) in a closed piston-cylinder device undergoes an internally reversible heating process from saturated liquid (State 1) at 60°C to a saturated liquid-vapor mixture (State 2). Work done by the system during the process is 37 kJ. At 60°C sf = 0.91827 kJ/kg-K uf=258.87 kJ/kg, Sg = 1.6964 kJ/kg-K and ug = 480.30 kJ/kg. Calculate change in specific entropy during the process, in kJ/kg-K.

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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