Question 23
Energy ChangesA chemical reaction in which the hydration energy is greater than the lattice energy is referred to as
- A.a spontaneous reaction
- B.an endothermic reaction
- C.an exothermic reaction
- D.a reversible reaction
Show the answer and explanation
Answer: C (an exothermic reaction)
Explanation
If more energy is released when the ions are hydrated than is needed to break the lattice, there is a net release of heat: exothermic.