deujanyejackson4939 deujanyejackson4939
  • 11-03-2024
  • Physics
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An inventor claims to have designed a heat engine, which extracts 2,000 kJ of a source of waste heat at 600 K, dumping 800 kJ of waste heat into a sink at 300 K, and converting the rest to useful work. What is the efficiency of the heat engine?
a) 40%
b) 50%
c) 60%
d) 70%

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