Question:
What is the enthalpy change (\( \Delta H \)) for an exothermic reaction?
What is the enthalpy change (\( \Delta H \)) for an exothermic reaction?
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Exothermic → Heat exits → \( \Delta H < 0 \)
Endothermic → Heat enters → \( \Delta H < 0 \)
Updated On: Apr 11, 2025
- Positive
- Negative
- Zero
- Infinite
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The Correct Option is B
Solution and Explanation
In an exothermic reaction, heat is released into the surroundings. As a result, the system loses energy, and the enthalpy change \( \Delta H \) is negative. Examples: - Combustion of fuels - Neutralization reactions Endothermic reactions absorb heat, hence \( \Delta H > 0 \).
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