Consider a sealed, rigid container of 10 kg of water vapor at 25°C and 80 kPa. A paddle wheel with a power rating of 1 kW is operated within the tank for 30 minutes. During that time 7 kJ of heat are lost to the surroundings. 1. Define the system. 2. What types of energy transfer occur? 3. What is the net energy change of the system? Taking water as an ideal gas (R = 0.4615 kJ /kg · K and c, = 1.8723 k]/kg - K), determine the final temperature and pressure of the water vapor. 4.

Consider a sealed, rigid container of 10 kg of water vapor at 25°C and 80 kPa. A paddle wheel with a power rating of 1 kW is operated within the tank for 30 minutes. During that time 7 kJ of heat are lost to the surroundings. 1. Define the system. 2. What types of energy transfer occur? 3. What is the net energy change of the system? Taking water as an ideal gas (R = 0.4615 kJ /kg · K and c, = 1.8723 k]/kg - K), determine the final temperature and pressure of the water vapor. 4.

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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