ΔH for an exothermic reaction is _?
Correct answer: C. Negative
- A. More than 1
- B. Positive
- C. Negative
- D. Neutral
Explanation
Exothermic reaction is a reaction in which net energy is released in a reaction. i.e, ΔH=(energy of products) -( energy of reactants)<0.i.e. negative
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About Exothermic and Endothermic Reactions
Exothermic reactions release heat to the surroundings and have negative enthalpy change, while endothermic reactions absorb heat and have positive enthalpy change. The topic uses energy profiles to identify reactants, products and activation energy, and includes bond energy, enthalpy diagrams, calorimetry and Hess's law for calculating overall heat changes.
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