A Carnot engine operates between
temperature 1000 K and 400 K. The heat rejected by the first Carnot engine is
used by the second Carnot engine, whose sink temperature is 200 K. If the net
heat absorbed by the first Carnot engine is 200 MJ. What is the heat rejected
(in MJ) by the second Carnot engine?
40
50
60
70
40
Given :
First Carnot engine (A):
..Method 2..
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