A tank containing air is stirred by a paddle wheel. The work input to the paddle wheel is 8000 kJ and the heat transferred to the surroundings from the tank is 5000 kJ. The external work done by the system is

A tank containing air is stirred by a paddle wheel. The work input to

1.	A tank containing air is stirred by a paddle wheel. The work input to the paddle wheel is 8000 kJ and the heat transferred to the surroundings from the tank is 5000 kJ. The external work done by the system is
A.	3000 kJ
B.	8000 kJ
C.	5000 kJ
D.	Zero
Answer» E.

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A tank containing air is stirred by a paddle wheel. The work input to the paddle wheel is 8000 kJ and the heat transferred to the surroundings from the tank is 5000 kJ. The external work done by the system is

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