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How can an exothermic reaction be identified?

Answer 1

Luna Chen

If energy (i.e. heat) is released upon completion of the reaction

Energy is released by exothermic reactions. Burning ethyl alcohol (i.e.)

#C_2H_5OH + 3O_2 -> 2CO_2 + 3H_2O + E#

energy (#E#) is released. Calorimeters measure this energy.

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Answer 2

Mateo Aguilar

An exothermic reaction can be identified by an increase in temperature in the surroundings, indicating that heat is being released from the reaction. Additionally, other signs such as the sensation of warmth, the production of light or flames, or an increase in pressure can also indicate an exothermic reaction.

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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.