For the process of dissolving a solid in a liquid,which of the following statements is true? A)ΔH_soln is always negative and ΔS_soln is usually positive. B)ΔH_soln is always positive and ΔS_soln is usually negative. C)ΔH_soln is either positive or negative and ΔS_soln is usually positive. D)ΔH_soln is either positive or negative and ΔS_soln is usually negative.

Question

Quizplus · Accepted Answer

The enthalpy change (ΔH) for dissolving a solid in a liquid can be either positive or negative, depending on the specific interactions between the solute and solvent. The entropy change (ΔS) for the process is usually positive because the dissolution process typically leads to an increase in disorder as the solid's structured lattice breaks down into solvated ions or molecules.

For the Process of Dissolving a Solid in a Liquid,which