I'd say water. There is more direct contact against the dry ice in water than in air. (assuming the water doesnt freeze).
I use dry ice/methanol baths at my job, and the dry ice always sublimes in the methanol faster than on the bench. I would think water would have the same effect.
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I'd say water. There is more direct contact against the dry ice in water than in air. (assuming the water doesnt freeze).
I use dry ice/methanol baths at my job, and the dry ice always sublimes in the methanol faster than on the bench. I would think water would have the same effect.