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wassimu t1_j6vqoz6 wrote

Reply to comment by Mackntish in What are the effects of adding rock salt to a cooler full of ice? by Ok_Kareem_7223

You cannot ”release the cold”. Cold is not a thing. There is only heat. Heat flows along temperature gradients. So you can add heat or lose heat and that’s it. Ice has heat, as does everything in the universe that is not at absolute zero.

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