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What is exothermic and endothermi defferenc |
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Answer» \t\xa0ExothermicEndothermicDefinitionAn exothermic reaction is just the opposite of an endothermic reaction as it produces heat.An endothermic reaction is that type of reaction which require or needs energy. This energy is supplied from the surroundings.Symbolic EquationA --> B + C + energy\xa0A + energy --> D\xa0ExamplesDigestion of food releases energyAll combustion reactions (fires)Adding an alkali metal to water2 Na + 2 H2O --> 2 NaOH + H2 + energyMelting of ice absorbs\xa0energyDissolving ammonium\xa0nitrate in water (the\xa0essence of commercial\xa0cold packs)Energy ContentEnergy content of the products is more than than the reactantsEnergy content of the reactants is less than the products\t Exothermic recations are reactions that give off heat while reacting and endothermic reactions absorb heat for the reaction and make the beaker or vessel cold.For ex- Methane +oxygen gives Carbon dioxide along with water.(exothermic reaction example)Endothermic reactions examples- evaporation of water, melting of solids ,etc. |
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