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Tank A which is completely insulated contains 1 kg of oxygen at 15°C and 300 kPa. It is connected to the 2-m3 tanks B through a valve as shown below. Tank B is not insulated and contains nitrogen at 50°C and 500 kPa. An engineer opens the valve connecting the two tanks to allow the two gauges to mix. Once the valve is opened, oxygen and nitrogen form a homogeneous mixture at 25°C. Determine (a) the final pressure in the tank, (b) the heat transfer from tank B, and (c) the entropy change in the system during this process.

Tank A which is completely insulated contains 1 kg of oxygen at 15°C and 300 kPa. It is connected to the 2-m3 tanks B through a valve as shown below. Tank B is not insulated and contains nitrogen at 50°C and 500 kPa. An engineer opens the valve connecting the two tanks to allow the two gauges to mix. Once the valve is opened, oxygen and nitrogen form a homogeneous mixture at 25°C. Determine (a) the final pressure in the tank, (b) the heat transfer from tank B, and (c) the entropy change in the system during this process.

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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Tank A which is completely insulated contains 1 kg of oxygen at 15°C and 300 kPa. It is
connected to the 2-m3 tanks B through a valve as shown below. Tank B is not insulated
and contains nitrogen at 50°C and 500 kPa. An engineer opens the valve connecting the
two tanks to allow the two gauges to mix. Once the valve is opened, oxygen and nitrogen
form a homogeneous mixture at 25°C. Determine (a) the final pressure in the tank, (b)
the heat transfer from tank B, and (c) the entropy change in the system during this
process.  

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