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← ScienceWhich effect results when an ideal Stirling engine undergoes isochoric cooling?
A)Internal energy decreases significantly✓
B)Thermal efficiency reaches Carnot limit
C)Isothermal expansion becomes adiabatic
D)Volumetric work converts to heat
💡 Explanation
The ideal Stirling engine uses isochoric cooling to reduce pressure because, during *isochoric heat removal*, heat leaves while volume remains constant, therefore internal energy drops accordingly, rather than performing work.
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