The Overall Enthalpy Change During the Process of Forming a Solution

question 12

Multiple Choice

The overall enthalpy change during the process of forming a solution involves three terms: separating solvent molecules (DH ^$\circ$ _solvent) , separating solute particles (DH ^$\circ$ _solute) , and forming new solute-solvent associations (DH ^$\circ$ _solution) . The overall process of forming a solution is endothermic if

• A) |DH^\(\circ\)_solute + DH^\(\circ\)_solvent| > |DH^\(\circ\)_solution|.
• B) |DH^\(\circ\)_solute + DH^\(\circ\)_solvent| = |DH^\(\circ\)_solution|.
• C) |DH^\(\circ\)_solute + DH^\(\circ\)_solvent| < |DH^\(\circ\)_solution|.
• D) DH^\(\circ\)_solute + DH^\(\circ\)_solvent = 0.
• E) DH^\(\circ\)_solution = 0.

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