Answer :
Final answer:
The correct answer is a) Exothermic. The dissolution of LiCl, with a heat of solution of -37.1 kJ/mol, is an exothermic process, where heat is released as the salt dissolves in water.
Explanation:
The correct answer is a) Exothermic. The heat of solution for LiCl is -37.1 kJ/mol, indicating that it is an exothermic process. In an exothermic reaction or process, heat is released into the surroundings, typically resulting in a temperature increase of the environment. The negative value means that energy is released when LiCl is dissolved in water.
Lithium chloride (LiCl) is an ionic compound that requires a significant amount of energy to separate its ions due to the lattice energy. When LiCl is dissolved in water, the polar nature of the water molecules facilitates the dissociation of the ions, and as a result, the process releases energy. This makes the dissolution of LiCl in water an exothermic reaction.
