Using the Thermodynamic Data Provided Below, Calculate the Standard Change

question 118

Multiple Choice

Using the thermodynamic data provided below, calculate the standard change in entropy when one mole of sodium nitrate is dissolved in water. $\begin{array}{|l|c|}\hline & \mathrm{S}^{\circ}(\mathrm{J} / \mathrm{K} \cdot \mathrm{~mol}) \\\hline \mathrm{NaNO}_{3}(\mathrm{s}) & 116.3 \\\hline \mathrm{Na}^{+}(a q) & 60.25 \\\hline \mathrm{NO}_{3}^{-}(a q) & 146.4 \\\hline\end{array}$ Will the solubility of sodium nitrate increase or decrease if the temperature of the system is increased

• A) -90.4 J/K·mol; solubility decreases with increasing temperature
• B) -90.4 J/K·mol; solubility increases with increasing temperature
• C) 90.4 J/K·mol; solubility decreases with increasing temperature
• D) 90.4 J/K·mol; solubility increases with increasing temperature
• E) None of the above

---

Definitions:

Latex Allergy

An allergic reaction to natural rubber latex, causing symptoms ranging from skin irritation to severe anaphylaxis.

Nursing Assistive Personnel

Staff members in healthcare settings who assist nurses in providing patient care but are not licensed as nurses themselves.

Moderate Sedation

A medically controlled state of depressed consciousness that allows patients to tolerate unpleasant procedures while maintaining airway control.

Sedation Score

A numerical system used to assess the depth of sedation in a patient, aiding in the management of their comfort and safety during medical procedures.