When there is temp rise in a chemical reaction, is this exothermic or endothermic? Is the sign (+) or (-)?

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When there is temp rise in a chemical reaction, is this exothermic or endothermic? Is the sign (+) or (-)?

2006-11-09 02:22:03 · 2 answers · asked by adam v 1 in Science & Mathematics ➔ Chemistry

2 answers

When heat is given off, the reaction is exothermic. The sign is negative because energy is given off by the system.

2006-11-09 02:25:54 · answer #1 · answered by Moo i'm a cow 2 · 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 03:59:02 · answer #2 · answered by shiara_blade 6 · 0⤊ 0⤋