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}

Question

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.

Quizplus · Accepted Answer

The heat of solution may be positive, zero, or negative, depending on the relative strength of the solute-solvent, solute-solute, and solvent-solvent attractive forces. If the solute-solvent attraction is stronger than the combination of solute-solute and solvent-solvent attractions, the heat of solution will be negative (exothermic). If the solute-solvent attraction is weaker than the combination of solute-solute and solvent-solvent attractions, the heat of solution will be positive (endothermic). If the solute-solvent attraction is equal in strength to the combination of solute-solute and solvent-solvent attractions, the heat of solution will be zero.

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

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