The Heat of Solution
A)is Never Positive $(\Delta{H}^{\circ}_{soln} \leq 0)$ , Because the Solute-Solvent Attraction Is Never Weaker Than the

question 29

Multiple Choice

The heat of solution

• A)is never positive \((\Delta{H}^{\circ}_{soln} \leq 0)\), because the solute-solvent attraction is never weaker than the combination of the solute-solute attraction and solvent-solvent attraction.
• B)is always positive \((\Delta{H}^{\circ}_{soln} > 0)\), because the solute-solvent attraction is always weaker than the combination of the solute-solute attraction and solvent-solvent attraction.
• C)is always zero (\(\Delta\)H^\(\circ\) _soln = 0), because the solute-solvent attraction is defined as the average of the solute-solute attraction and solvent-solvent attraction.
• D)is always negative \((\Delta{H}^{\circ}_{soln} < 0)\), because the solute-solvent attraction is always stronger than the combination of the solute-solute attraction and solvent-solvent attraction.
• E)may be positive, zero, or negative, depending on the relative strength of the solute-solvent, solute-solute, and solvent-solvent attractive forces.

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