It's an endothermic PROCESS, not a reaction. nothing is actually reacting to anything else, it's just a shift in energy. Just like water isn't reacting when it boils, it's just getting hotter, molecules are moving about and nothing more. Water, ice and steam are all the same thing, just with different energy. It's the same for CO2.
As for "in the chemistry or physics sense", you can't make that distinction, it's just something we do so you know which class to go to.
Put really, really simply an Endothermic reaction is when chemicals react, forming something new and taking in heat. You can use the term reaction for other things (like Einstein's theory of relativity) but in this sense it means a reaction between chemicals.
As for "in the chemistry or physics sense", you can't make that distinction, it's just something we do so you know which class to go to.
Put really, really simply an Endothermic reaction is when chemicals react, forming something new and taking in heat. You can use the term reaction for other things (like Einstein's theory of relativity) but in this sense it means a reaction between chemicals.
