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Heat of solution involves two steps that is accompanied by heat change. The energies involved...

Chemistry
JAMB 2024

Heat of solution involves two steps that is accompanied by heat change. The energies involved in this steps are

  • A. lattice energy and hydration energy
  • B. lattice energy and ionic energy
  • C. Heat energy and lattice energy
  • D. hydration energy and heat energy
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Correct Answer: Option A
Explanation

Both lattice energy and hydration energy are involved in heat of solution.

  • Lattice energy: The energy required to break an ionic solid into gaseous ions. 
  • Hydration energy:The energy released when ions are separated from a lattice and dissolved in water. Hydration enthalpies are always negative.

  • Heat of solution:The heat released when a compound is dissolved. The heat of solution can be calculated by adding the lattice energy and hydration energy: 

  •                   Heat of solution = Lattice energy + Hydration energy

There is an explanation video available below.


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Explanation Video

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