380 J of energy extracted from a hot reservoir and 120 J expelled to the cold reservoir at temperature 850 K...?
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a) How many joules are converted to work? (b) What is the temperature of the hot reservoir in kelvins? Visual aid: http://tinypic.com/r/9r6m93/8
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Answer:
Th - Tc/Th = (Th - 850)/Th = (380 - 120)/380 = 0.6842 Th(0.6842) = Th - 850 -0.31579Th = -850 Th = 2692°K ANS
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