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tensa zangetsu [6.8K]
3 years ago
14

How does an instant cold pack get cold so quickly?.

Social Studies
1 answer:
Ksju [112]3 years ago
6 0

Answer:

Here is how

Instant cold packs are actually made up of two bags inside. ... When you shake or hit the pack, the internal bags break, causing the two substances to mix. This leads to an endothermic reaction which causes the pack to turn cold for several minutes.

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