AP Chemistry 9.6 Free Energy of Dissolution Question Bank

Practise AP Chemistry 9.6 dissolution questions by linking solute-solvent interactions, enthalpy, entropy and solubility changes.

Exam points

assign enthalpy and entropy signs when solvent-solvent and solute-solute interactions break
use dissolution enthalpy to predict how temperature changes a salt solubility

[Maximum number: 1]

34. The process of dissolution of $\mathrm{NaCl}(s)$ in $\mathrm{H}_{2} \mathrm{O}(l)$ is represented in the diagram above. Which of the following summarizes the signs of $\Delta H^{\circ}$ and $\Delta S^{\circ}$ for each part of the dissolution process?

$\underline{\Delta H^{\circ}}$

$\underline{\Delta S^{\circ}}$

$\underline{\Delta H^{\circ}}$

$\underline{\Delta S^{\circ}}$

$\underline{\Delta H^{\circ}}$

$\underline{\Delta S^{\circ}}$

Figure for Question 9.6.A—Explain the relationship between the solubility of a salt and changes in the enthalpy and entropy that occur in… question 1 — AP Chemistry

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9.6.A—Explain the relationship between the solubility of a salt and changes in the enthalpy and entropy that occur in… question 1