Which, if any, of the heat engines in FIGURE EX21.22 violate (a) The first law of thermodynamics

Question:

Which, if any, of the heat engines in FIGURE EX21.22 violate 

(a) The first law of thermodynamics

(b) The second law of thermodynamics? Explain.

a.

Hot reservoir T = 600 K 500 J Heat 300 J engine 200 J Cold reservoir Tc = 300 K

b.

Hot reservoir TH = 600 K 500 J Heat 200 J engine 200 J Cold reservoir Te = 300 K

c.

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