If the theoretical efficiency of a Carnot engine is to be 100%, the heat sink must be
A. at absolute zero.
B. at 0e C.
C. at 100eC.
D. infinitely hot.
Answer:A
If the theoretical efficiency of a Carnot engine is to be 100%, the heat sink must be
A. at absolute zero. B. at 0e C. C. at 100eC. D. infinitely hot.