Three Carnot Engines Operate Between Temperature Reservoirs as Follows: Engine

question 21

Multiple Choice

Three Carnot engines operate between temperature reservoirs as follows: Engine A: T_h = 1 100 K,T_c = 1 000 K;Engine B: T_h = 550 K,T_c = 500 K;Engine C: T_h = 1100 K,T_c = 500 K.Which two engines have the same thermal efficiency?​

• A)A and C
• B)B and C
• C)A and B
• D)No two have the same thermal efficiency.
• E)​A and B and C

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