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an ideal heat engine exhausting heat at 77°C is to have a 30% efficiency. it must take heat at 127°C 227°C 327°C 673°C

an ideal heat engine exhausting heat at 77°C is to have a 30% efficiency. it must take heat at
  1. 127°C
  2. 227°C
  3. 327°C
  4. 673°C

Grade:12

1 Answers

Vasanth SR
askIITians Faculty 1310 Points
4 years ago
227

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