Mathematics · Thermodynamics
A heat engine drives a heat pump. The engine's rejected heat plus the pump's delivered heat both warm circulating water in building radiators. Engine efficiency is 30%; heat pump COP is 3.5. Find the ratio of total heat delivered to water divided by heat input to the engine.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 13.75
- 21.5
- 31.75✓
- 42
Correct answer
1.75
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