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A carnot engine takes 3 × 10 6 cal of heat from a reservoir at 627°C, and gives it to a sink at 27°C. The work done by the engine is (A) 4.2 × 10 6 J (B) 8.4 × 10 6 J (C) 16.8 × 10 6 J (D) zero

A carnot engine takes 3 × 106 cal of heat from a reservoir at 627°C, and gives it to a sink at 27°C. The work done by the engine is

(A) 4.2 × 106 J

(B) 8.4 × 106 J

(C) 16.8 × 106 J

(D) zero

Grade:upto college level

1 Answers

jitendra
38 Points
4 years ago
(b) 8.4*106
work done by enigne while taking heat 
Q=3*106 cal is w=2*106*4.2=8.4*106 j.
this is expect answer i think
 

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