... One Is Filled With Cold Water.if We Add Salt To Each Of The Tumbler,hot Water Will Dissolve The Salt First.why?
Answers (1)
It depends on what kind of salt. Some kinds absorb energy to dissolve so the mixture is colder than the pure water was. Some kinds release energy to dissolve so the mixture is hotter than the pure water was. You can get both kinds at a sporting goods store, hot packs and cold packs. Wikipedia.com has some general info on them, but not much.