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crimeas [40]
4 years ago
9

g Water is being heated in a closed pan on top of a range while being stirred by a paddle wheel. During the process, 30 kJ of he

at is transferred to the water, and 5 kJ of heat is lost to the surrounding air. The paddle-wheel work amounts to 500 N·m. Determine the final energy of the system if its initial energy is 12.5 kJ.
Engineering
1 answer:
AVprozaik [17]4 years ago
8 0

Answer:

38kJ

Explanation:

Final Energy= Total Energy at the beginning + Total energy added - energy lost

Final Energy = 12.5 + 500/1000 + 30- 5

                   = 38kJ

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Five hundred gallons of 89-octane gasoline is obtained by mixing 87-octane gasoline with 92-octane gasoline. (a) Write a system
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