When is delta H negative?
Understand the Problem
The question is asking under what circumstances the change in enthalpy (ΔH) is negative, which typically indicates an exothermic reaction where heat is released.
Answer
In an exothermic reaction.
The final answer is in an exothermic reaction.
Answer for screen readers
The final answer is in an exothermic reaction.
More Information
When delta H (ΔH) is negative, it means the reaction releases energy to its surroundings, which occurs during exothermic reactions. This signifies that the products of the reaction have lower energy than the reactants.
Tips
A common mistake is confusing an exothermic reaction with an endothermic reaction. Remember, exothermic reactions release heat (negative ΔH), while endothermic reactions absorb heat (positive ΔH).
Sources
- 7.6: Heats of Reactions - ΔU and ΔH - Chemistry LibreTexts - chem.libretexts.org
- Is negative delta H exothermic? - BYJU'S - byjus.com
- What does it mean when delta H is negative? - Vedantu - vedantu.com
AI-generated content may contain errors. Please verify critical information
