For each of the following processes, identify the system and the surroundings. I

Question

For each of the following processes, identify the system and the surroundings. Identify those processes that are spontaneous. For each spontaneous process, identify the constraint that has been removed to enable the process to occur: A solution of hydrochloric acid is titrated with a solution of sodium hydroxide. Zinc pellets dissolve in aqueous hydrochloric acid. A rubber band is slowly extended by a hanging weight. The gas in a chamber is rapidly compressed by a weighted piston. A tray of water freezes in the freezing compartment of an electric refrigerator.

Explanation / Answer

(a) HCl (aq) + NaOH (aq.) -----------------> NaCl (aq.) + H2O (l)

Spontaneous acid - base reaction.

(b) Zn (s) + 2 HCl (aq.) -----------> ZnCl2 (aq.) + H2 (g)

Spontaneous redox reaction

(c) a Physical change

(d) a physical change

(e) a physical change

Related Questions

Navigate

• Browse (All)
• Browse F
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.