Engineering, 04.02.2021 23:00 nayi2002

When she placed her hand on the side of the container, it felt really cold, but it didn't feel that way before. The temperature had dropped by about 30 degrees Celsius. The substance was now grey and crystallin in structure.
Was this a chemical reaction?

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When she placed her hand on the side of the container, it felt really cold, but it didn't feel that...