The Normal Freezing Point of Ammonia Is -78 ^$\circ$ C Predict the Signs Of Ammonia

question 50

Multiple Choice

The normal freezing point of ammonia is -78 ^$\circ$ C. Predict the signs of $\Delta$ H, $\Delta$ S, and $\Delta$ G for ammonia when it freezes at -80 ^$\circ$ C and 1 atm: NH₃(l) $\rarr$ NH₃(s) . $\begin{array}{llll}&\Delta \mathrm{H} & \Delta \mathrm{S} & \Delta \mathrm{G}\\\hline\text { A. } & - & - & 0 \\\text { B. } & - & + & - \\\text { C. } & + & - & + \\\text { D. } & + & + & 0 \\\text { E. } & - & - & -\end{array}$

• A) A
• B) B
• C) C
• D) D
• E) E

---

Definitions:

Occasional Users

Individuals who use a service or product infrequently rather than on a regular basis.

TQM

Total Quality Management, a management approach centered on continuous improvement and customer satisfaction through systemic changes.

Organizational Change

The process through which a company or other entity alters its structures, strategies, operational methods, technologies, or organizational culture.

Continuous

Something that occurs in an unbroken or consistent manner over time, often without stopping or interruption.