Physics · Thermodynamics
Two Carnot engines A and B operate in series such that engine A absorbs heat at temperature T1 and rejects heat to a cyclic intermediate reservoir at temperature T. Engine B absorbs half of the heat rejected by Engine A and rejects heat to a sink at temperature T3. When the work done in both cases is equal, the value of the intermediate temperature T is:
- 123 T1 + 32 T3
- 213 T1 + 23 T3
- 332 T1 + 13 T3
- 423 T1 + 13 T3✓
Correct answer
23 T1 + 13 T3
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