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A Cannot engine discharge 3 J of heat into the low-temperature reservoir for every 2 J of work output. (a) what is the efficiency of this Cannot engine? (A) 1/3 (B) 2/5 (C) 3/5 (D)2/3 (b) For this engine T l = 27ºC. What can be concluded about T H ? (A) T H = 627ºC. (B)T H =227ºC. (C) T H > 627ºC. (D)T H (E) 227ºC H

A Cannot engine discharge 3 J of heat into the low-temperature reservoir for every 2  J of work output. (a) what is the efficiency of this Cannot engine?                                                                            
 (A) 1/3              
(B) 2/5                               
(C) 3/5                 (D)2/3                                                                               
(b) For this engine Tl  = 27ºC. What can be concluded about TH?                                                           
(A) TH = 627ºC.              
(B)TH=227ºC.                                                                                                              
(C) TH > 627ºC.               
(D)TH
(E) 227ºC H

Grade:11

1 Answers

Aditi Chauhan
askIITians Faculty 396 Points
6 years ago
(a) The correct option is (A) 1/3.
The efficiency ε of a Carnot engine is defined as,
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