Heat Engines and Refrigerators
82. An ideal heat engine is opening between 227°C and 127°C.
It absorbs 10'J amount of heat at the higher temperature.
The amount of heat converted into work is
(a) 2000 J
(b) 4000 J
(c) 8000J
(d) 5600 J
ex. A Carnot's onair
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