(Original post by CorpusLuteum)
Yeah, so what is the the heat going into if it is endothermic? Idk, where the heat has gone and why the waters temperature is dropping even though endothermic means for heat to be going in to something (making it hotter)
Okay, if the reaction is endothermic, it needs to use the energy from the heat in the area around it, so literally- the heat stored in the beaker and the air/ stuff around it. The heat is drawn in to the reaction. The heat will go into the reaction but it won't feel hot because the energy will be used to plug the gap in energy needed to complete the reaction.
The jar the reaction is happening in, and the immediate area around it will feel cold because the heat has been taken in by the chemicals that are reacting and used to complete the reaction. The heat energy is used for the purpose of complete ong the reaction and not for heat so it will not feel hot.
Yes the heat goes in, but think of the beaker as a threshold where once the heat enters it changes into something else, and doesn't exist as heat anymore. That energy is still there, it's just no longer hot. That's why it feels cold- because the heat is sucked in and used in the reaction so the things that were warm will now feel cold because he heat energy is no longer there.
I hope this clarifies it for you.