DATA In your summer job with a venture capital firm, you are given funding requests from four inventors of
Prototype | ||||
A | B | C | D | |
TC (°C), low-temperatu re reservoir | 47 | 17 | –33 | 37 |
TH (°C). high-t emperatu re reservoir | 177 | 197 | 247 | 137 |
Claimed efficiency e (% ) | 21 | 35 | 56 | 20 |
(a) Based on the TC and TH values for each prototype, find the maximum possible efficiency for each. (b) Are any of the claimed efficiencies impossible? Explain. (c) For all prototypes with an efficiency that is possible, rank the prototypes in decreasing order of the ratio of claimed efficiency to maximum possible efficiency.
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