A chemical reaction which the hydration energy is greater than the lattice energy is referred to as
a spontaneous reaction
an endothermic reaction
an exothermic reaction
a reversible reaction
Explanation
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For any chemical reaction, both bond breaking process and bond forming process occur. In bond breaking, energy is required to break the ionic molecules in the crystal lattice. This is called 'lattice energy' and it is 'endothermic'. In bond forming process energy is liberated when the free ions combine with water molecules to become hydrated. This is called 'hydrated energy' and it is 'exothermic'. Both lattice energy and hydrated energy occur simultaneously. Thus, the reaction is either exothermic or endothermic depending on which is greater.
A reaction is exothermic, if the hydration energy is greater than the lattice energy.
The correct option is C.
A chemical reaction in which the hydration energy is greater than the lattice energy is referred to as an exothermic reaction.
Here's why:
* Lattice Energy: This is the energy required to break apart an ionic compound into its gaseous ions. Think of it as the energy holding the compound together.
* Hydration Energy: This is the energy released when ions become surrounded by water molecules (or other solvent molecules). It's like the energy gained when the ions become "comfortable" in the water.
If the hydration energy (the energy released) is greater than the lattice energy (the energy needed to break apart), it means more energy is given off than is used. This release of energy into the surroundings is what makes a reaction exothermic.
hydration energy is energy released in d atm yl latice energy is energy in a system especially in a hot metal..since d hydration energy is greater than d lattice energy d rxn is exothermic
Dissolution is exothermic if hydration energy is greater than lattice energy....shikena🍿🤭
A chemical reaction in which the hydration energy is greater than the lattice energy is referred to as an exothermic reaction. In an exothermic reaction, more energy is released when the solute molecules are surrounded by solvent molecules (hydration energy) than is required to break the bonds in the crystal lattice of the solute (lattice energy). As a result, the overall reaction releases heat to the surroundings.
Therefore, the correct answer is option C. an exothermic reaction.
Summary
Lattice Energy: This requires a lot of energy to break the bond in the lattice structure, which is endothermic in nature.
Hydration Energy: This require bond forming energy which brings about the release of heat which is highly exothermic.
When hydration energy is greater than lattice energy, enthalpy is positive, indicating an endothermic reaction.
