Mathematics · Thermodynamics Calculations
A reversible heat engine converts one-sixth of the supplied heat into work. When the sink temperature is lowered by 62 K (or lowered to 70°C / 343 K in thermodynamic problems), the thermal efficiency becomes twice its original value. Determine the absolute temperatures of the source and the sink.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1420 K and 350 K✓
- 2350 K and 300 K
- 3490 K and 300 K
- 4490 K and 350 K
Correct answer
420 K and 350 K
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