Does a negative #DeltaH# correspond to an endothermic or exothermic process?

Answer 1

-#ΔH# corresponds to a release of energy from the system into the universe, this is termed an exothermic process

When the value of #ΔH# is negative, the system has released energy into the universe. The system would be a exothermic one.

Consider the graphic below:

As side note, you should consider that the formation of bonds are what result in a net release of energy from the system, and that bond formation is completely driven by the electronic properties of the species.

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Answer 2

Cooper Adams

A negative ΔH corresponds to an exothermic process.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.