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Openai/680a25f8-9f18-8004-a42d-cd36374ba000
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==== π« Wrong. ==== * You used the mass-transfer limited sublimation rate, properly derived from the diffusion of water vapor away from the particle. * Water vapor replenishment would require: - Large-scale continuous condensation, - A regional RHi over 373% to counteract sublimation β which doesn't happen. * In the absence of such extreme, sustained supersaturation, sublimation wins because: - The vapor pressure gradient favors ice β vapor strongly. - Sublimation occurs on the particle scale (~microns) faster than ambient-scale replenishment can occur. * No replenishment mechanism has been identified or observed that could sustain single ice particles against fast solar-driven sublimation. β You correctly modeled the timescales: particle sublimation (~1 s) vastly outpaces any environmental vapor inflow.
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