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Which outcome occurs when a Stirling engine's regenerator matrix undergoes sublimation?

A)Iodine vapor pressure rapidly increases
B)Cycle efficiency remains approximately constant
C)Isothermal expansion phase becomes extended
D)Adiabatic compression phase shortens drastically

💡 Explanation

Sublimation of regenerator material will rapidly raise its partial pressure due to the added gas molecules. This outcome occurs because equilibrium is then disturbed; iodine vapor pressure rapidly increases rather than remaining stable because it surpasses the bounds of equilibrium.

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