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Category > Applied Sciences Posted 22 Jun 2017 My Price 6.00

A rigid tank contains 2 kg air at 200 kPa and ambient temperature

1. Argon in a light bulb is at 110 kPa, 90â—¦C. The light is turned off, so the argon cools to the ambient temperature of 20â—¦C. Disregard the glass and any other mass and find the specific entropy generation.

2. A rigid tank contains 2 kg air at 200 kPa and ambient temperature, 20â—¦C. An electric current now passes through a resistor inside the tank. After a total of 100 kJ of electrical work has crossed the boundary, the air temperature inside is 80â—¦C. Is this possible?

 

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Alpha Geek
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Status NEW Posted 22 Jun 2017 11:06 AM My Price 6.00

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