Endothermic:
Endothermic reaction is the reaction in which the energy is used in the form of heat. The surroundings lose energy and as a result the endothermic end product has higher energy level than the reactants. The product is less stable due to this higher energy bonds,
Exothermic:
Exothermic reactions are the reaction in which the energy is released in the form of heat. Heat is required to complete the reaction. Photosynthesis in plants is a chemical endothermic reaction.
Differences:
| Basis | Endothermic | Exothermic |
|---|---|---|
| Definition (www.oxforddictionaries.com) |
(Of a reaction or process) accompanied by a requiring the absorption of heat. | (Of a reaction or process) accompanied by the release of heat. |
| Synonyms | Endoergic, endothermal, warm-blooded, heat-absorbing and energy-absorbing | Buttery, caloric, fatty, creamy, energy-releasing and indigestible |
| Antonyms | Pyretic, exothermal, fever, calorific | Slimming, antipyretic |
| Pronunciation |
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| History | It was firstly used in 1884. | It was firstly used in 1884. |
| Word origin | The word endothermic was originated from Greek words endo (inside) and thermasi (to heat). | The word exothermic was originated from Greek words exo (outside) and thermasi (to heat). |
| Energy content | Energy content of the reactants is less than the products. | Energy contents of the products are more than the reactants. |
| Symbolic equation | A + energy –> D | A –> B + C + energy |
| Example in Sentence |
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