For each of the cases below, determine if the system is a heat engine or refrigerator (please look at the signs of Q7, W and Q,). Then, determine if each case satisfies the first law (energy balance) and if it violates the second law of Thermodynamics. QH = 10 kW QH = -8 kW QH = -6 kW QH = 7 kW ģ, = -4 kW QL = 8 kW ģ, = 5 kW Q, = -2 kW W = 6 kW W = 0 kW W = -1 kW W = 8 kW а. b. c. d.

Elements Of Electromagnetics
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Author:Sadiku, Matthew N. O.
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For each of the cases below, determine if the system is a heat engine or refrigerator (please look at the
signs of Q7, W and Q,). Then, determine if each case satisfies the first law (energy balance) and if it
violates the second law of Thermodynamics.
QH = 10 kW
QH = -8 kW
QH = -6 kW
QH = 7 kW
ģ, = -4 kW
QL = 8 kW
ģ, = 5 kW
Q, = -2 kW
W = 6 kW
W = 0 kW
W = -1 kW
W = 8 kW
а.
b.
c.
d.
Transcribed Image Text:For each of the cases below, determine if the system is a heat engine or refrigerator (please look at the signs of Q7, W and Q,). Then, determine if each case satisfies the first law (energy balance) and if it violates the second law of Thermodynamics. QH = 10 kW QH = -8 kW QH = -6 kW QH = 7 kW ģ, = -4 kW QL = 8 kW ģ, = 5 kW Q, = -2 kW W = 6 kW W = 0 kW W = -1 kW W = 8 kW а. b. c. d.
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