When there is temperature decreases in a chemical reaction, is this exothermic or endothermic?
2006-11-14 11:31:28 · 9 answers · asked by Juan V 1 in Science & Mathematics ➔ Chemistry
endothermic because it takes in heat.
2006-11-14 11:32:27 · answer #1 · answered by darcy_t2e 3 · 0⤊ 0⤋
Endothermic is correct. Think of it this way, if something is exothermic, heat exits the substance and warms up the area around it (resulting in a rise in temperature) :) Endothermic is the opposite.
2006-11-14 11:33:43 · answer #2 · answered by mmbhorngangsta 2 · 0⤊ 0⤋
Fire is an exothermic reaction because it releases energy.
If the temperature decreases, it because the heat is going inside the molecule and therefore the reaction requires energy: which means it is endothermic.
2006-11-14 11:33:14 · answer #3 · answered by kihela 3 · 0⤊ 0⤋
Endothermic reaction is accompanied by a drop in the temp. of the surrounding (as heat is absorbed fr the surroundings )
Exothermic reaction-vice versa
2006-11-14 12:08:48 · answer #4 · answered by ms u 1 · 0⤊ 0⤋
When you say, hold a test tube, that has had something react in it, and it is cold, that means it is drawing heat in. Therefore, that would be endothermic. If you feel heat, it is releasing heat, so that would be exothermic.
2006-11-14 11:35:10 · answer #5 · answered by Anonymous · 0⤊ 0⤋
endo takes in heat ,exo gives off heat
2006-11-14 11:45:27 · answer #6 · answered by dreamz 4 · 0⤊ 0⤋
exothermic because it emits heat
2006-11-14 11:33:51 · answer #7 · answered by It hurts 2 · 0⤊ 2⤋
endo takes in heat
exo gives off heat
this one is endo
2006-11-14 11:33:20 · answer #8 · answered by jerzey79 2 · 1⤊ 0⤋
ENDOTHERMIC
2006-11-14 11:34:52 · answer #9 · answered by DO 2011 2 · 0⤊ 0⤋