Question

Is the dissolution of lithium iodide endothermic or exothermic?

Answer 1

The dissolution of lithium iodide is endothermic because energy is required to overcome the intermolecular interactions in the solvent and the solute.

Step-by-step explanation:

The process of dissolving lithium iodide is endothermic. This means that energy is required to overcome the intermolecular interactions in both the solvent and the solute. In the case of lithium iodide, the lattice energy, which is the energy required to overcome the forces holding the ions together in the solid lattice, must be overcome. This process absorbs heat from the surroundings, making it endothermic.

Answer 2

Answer: Exothermic

Step-by-step explanation:

An exothermic reaction is one in which heat is given out to the surrounding. The reaction vessel feels hotter during an exothermic reaction. When LiI is dissolved in water, the reaction vessel feels hotter. Hence the dissolution of lithium iodide in water is exothermic.