Chemistry - Thermodynamics - I Question with Solution | TestHub
It is observed that when acids and bases react, some energy is released due to a neutralization reaction. While the energy released is greater for strong acids and bases, it is lesser for weaker acids or bases. The difference is attributed to the energy required for ionization. From the above information and the data below, answer the questions that follow:
of NH₄OH
of H₂C2O4
What will be the energy released when 500 ml of solution reacts with 1L of solution if the base is ionized in the given solution?
Options:
Answer:
Solution:
Strong acid equivalent = Sulfuric acid =
Weak base = Ammonium hydroxide =
So, complete neutralization occurs ( each).
Base is ionized, which incurs an energy penalty for ionization:
Neutralization energy (strong acid–strong base):
Total correction:
Considering rounding and standard convention adjustment in a weak system, the final effective released energy is approximately .