The ammoia solution also had hydorgen mixed in with it. The heating seperats out these two chemicals.When they recombine.they create an endothermic reaction. Like those cold packs a sports trainer may use , on the side lines. The twop chemicals need to be mixed in a certin ratio. If one is in short supply, the reaction stops. I think it is the hydrogen leaking out, since it is so light and I can hear liquid ammonia sloshing around inside wehn I burp one. |
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