engineering recuitment HPCL Engineer Mock Test 2024 Thermodynamics Second Law of Thermodynamics and Entropy Performance of Heat Engines and Reversed Heat Engines
A heat engine operates between three reservoirs R1 at 550 K, R2 at 450 K and R3 at 350 K. For every cycle, the engine accepts 100 kJ from R1 and rejects 60 kJ into R2 and 30 kJ into R3. The engine efficiency is _________
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