exothermic/endothermic
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exothermic/endothermic
Besides the reaction equation, are there any other ways we can identify whether a reaction is endothermic or exothermic? And are there exceptions to being able to identify this from the equation?
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Re: exothermic/endothermic
If you are given delta H of the equation, you can identify if the reaction is endothermic or exothermic. If delta H (which represents the change in enthalpy) is positive, then it is an endothermic reaction. If delta H is negative, then it is an exothermic reaction since energy is being released, not absorbed.
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Re: exothermic/endothermic
Often times, delta H will be given to determine whether a rxn is endothermic or exothermic. Positive delta H = endothermic; Negative delta H = exothermic.
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Re: exothermic/endothermic
You can determine it based on the sign of delta h (enthalpy). You can also tell from the description of the reaction; whether or not energy is required or released.
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