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Which behavior changes occurs in two cascaded Carnot heat engines when the intermediate temperature increases?

A)Work output shifts to first engine
B)Total efficiency reaches Carnot limit
C)Combined heat exhausted approaches zero
D)Entropy change minimizes in both engines

💡 Explanation

When intermediate temperature increases, the temperature difference across the first Carnot engine decreases, reducing its work output and increasing the work produced by the second engine; heat transfer happens because of temperature differential. Therefore work shifts, rather than the incorrect results without temperature relations.

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