SolutionHard

Question

The dissolving process is exothermic when :

Options

A.The energy released in solvation exceeds the energy used in breaking up solute-solute and solvent-solvent interactions.

B.The energy used in solvation exceeds the energy released in breaking up solute-solute and solvent-solvent interactions.

C.The energy released in solvation is about the same as the energy used in breaking up solute-solute and solvent-solvent interactions.

D.The energy used in solvation is about the same as the energy used in breaking up solute-solute and solvent-solvent interactions.

Solution

solvent-solvent interaction and solute-solute interaction are endothermic while solvent-solute interaction is exothermic. The sum of the three interaction determines whether ᐃH_sol is endothermic as exothermic.

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