SSC
CHEMISTRY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What are chemical reactions that absorb energy?
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endothermic
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fast
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slow
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exothermic
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Explanation:
Detailed explanation-1: -An endothermic reaction is any chemical reaction that absorbs heat from its environment. The absorbed energy provides the activation energy for the reaction to occur. A hallmark of this type of reaction is that it feels cold.
Detailed explanation-2: -Endothermic Process v/s Endothermic Reaction This is done through the process of sweating. The sweat (produced on the surface of the skin) absorbs heat from the skin to evaporate, thereby creating a cooling effect.
Detailed explanation-3: –Examples of endothermic reactions are: (A) Ice cubes melt into liquid by absorbing heat energy from the surroundings. (C) Formation of nitric oxide (NO) by reacting nitrogen with oxygen is also an endothermic reaction.
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