7.30 A rigid, insulated tank contains 06 kg of air, initially at 200 kPa,20°C. The air is stirred by al paddle wheel until its pressure is250 kPa. Using the ideal gas model with c, - 0.72 kJ/kg · K,determine, in kJ, (a) the work, (b) the change in exergy of theair, and (c) the amount of exergy destroyed. Ignore the effectsof motion and gravity, and let T, - 20°C, Po - 100 kPa.

Given data: The mass of the air in the tank is m=0.6 kg The initial pressure in the tank is P1=200…

730 A rigid, insulated tank contains 06 kg of air, initially at 200 kPa, 20C. The air is stirred by alpaddle wheel until its pressure is 250 kPa. Using the ideal gas model with - 072 kJkg - K, determine, in kJ, (a) the work, (b) the change in exergy of the air, and (c) the amount of exergy destroyed. Ignore the effects of motion and gravity, and let T - 20°C, - 100 kPa.

730 A rigid, insulated tank contains 06 kg of air, initially at 200 kPa, 20C. The air is stirred by alpaddle wheel until its pressure is 250 kPa. Using the ideal gas model with - 072 kJkg - K, determine, in kJ, (a) the work, (b) the change in exergy of the air, and (c) the amount of exergy destroyed. Ignore the effects of motion and gravity, and let T - 20°C, - 100 kPa.

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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Question

7.30 A rigid, insulated tank contains 06 kg of air, initially at 200 kPa,
20°C. The air is stirred by al paddle wheel until its pressure is
250 kPa. Using the ideal gas model with c, - 0.72 kJ/kg · K,
determine, in kJ, (a) the work, (b) the change in exergy of the
air, and (c) the amount of exergy destroyed. Ignore the effects
of motion and gravity, and let T, - 20°C, Po - 100 kPa.

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