Enthalpy Of Neutralization
The enthalpy of neutralization of a strong acid by a strong base is approximately:
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About This Question
- Subject
- chemistry
- Chapter
- chemical thermodynamics
- Topic
- enthalpy of neutralization
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
−57.1 kJ/mol
The Enthalpy of Neutralization of any strong acid by any strong base is virtually constant at −57.1 kJ/mol (or −13.7 kcal/mol).
- Reason: Strong acids and bases are completely dissociated in aqueous solution.
- Net ionic equation: H+(aq)+OH−(aq)→H2O(l)
- Since the actual process is simply the formation of water from its ions, the heat released remains the same regardless of the specific identities of the strong acid and base.
This easy difficulty chemistry question is from the chapter chemical thermodynamics, covering the topic of enthalpy of neutralization. It appeared in the 2025 exam.
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