2006-11-09 02:23:26 · 4 answers · asked by adam v 1 in Science & Mathematics ➔ Chemistry
A temperature decrease indicates an endothermic reaction, because energy has been taken from the environment and added to chemical bonds.
2006-11-09 02:26:09 · answer #1 · answered by DavidK93 7 · 0⤊ 0⤋
When a reaction absorbs heat (gets colder) it is called endothermic (endo- prefix meaning "into). The sign of the engery depends on a few things, but in general the sign is + for endothermic reactions
2006-11-09 10:32:05 · answer #2 · answered by bagpiper75 1 · 0⤊ 0⤋
Well when the temperature decrease during the reaction it is endothermic, because it is absorbing heat from thesurrounding and when the heat is absorbed it is always positive
2006-11-09 10:27:08 · answer #3 · answered by Sanskar 1 · 0⤊ 0⤋
easiest way of looking at this is to think is heat a product or reactant. endothermic reactions need heat to work, while exothermic reactions give off heat.
2006-11-09 11:58:42 · answer #4 · answered by shiara_blade 6 · 0⤊ 0⤋