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1 m3 of air is heated reversibly at constant pressure from 15°C to 350°C, and is then cooled reversibly at constant volume back to the initial temperature. The initial pressure is 1.03 bar. Take Cp, Çxand R as 1.005 kJ/kg,K , 0.718 kJ/kg. K and 0.287 kJ/kg,K respectively. 1. a) Sketch the processes on a T-s diagram. b) Calculate (i) the net heat flow, and (ii) the overall change of entropy.

1 m3 of air is heated reversibly at constant pressure from 15°C to 350°C, and is then cooled reversibly at constant volume back to the initial temperature. The initial pressure is 1.03 bar. Take Cp, Çxand R as 1.005 kJ/kg,K , 0.718 kJ/kg. K and 0.287 kJ/kg,K respectively. 1. a) Sketch the processes on a T-s diagram. b) Calculate (i) the net heat flow, and (ii) the overall change of entropy.

Elements Of Electromagnetics
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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1 m3 of air is heated reversibly at constant pressure from 15°C to 350°C, and is then cooled reversibly at constant volume back to the initial temperature. The initial pressure is 1.03 bar. Take Cp, Çx and R as 1.005 kJ/kg,K , 0.718 kJ/kg. K and 0.287 kJ/kg,K respectively. 1. a) Sketch the processes on a T-s diagram. b) Calculate (i) the net heat flow, and (ii) the overall change of entropy.
Transcribed Image Text:1 m3 of air is heated reversibly at constant pressure from 15°C to 350°C, and is then cooled reversibly at constant volume back to the initial temperature. The initial pressure is 1.03 bar. Take Cp, Çx and R as 1.005 kJ/kg,K , 0.718 kJ/kg. K and 0.287 kJ/kg,K respectively. 1. a) Sketch the processes on a T-s diagram. b) Calculate (i) the net heat flow, and (ii) the overall change of entropy.
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