800 O 700 cyclohexane -methanol isopropyl acetate temperature, o Use the graph t

Question

800 O 700 cyclohexane -methanol isopropyl acetate temperature, o Use the graph to answer the following questions: most volatile: choose one Which liquid is the most volatile? Which is the least volatile? 0 0 1 least volatile: choose one cyclohexane: What is the normal boiling point of each liquid? Note: your answer must be within 1°C of the exact answer to be graded correct 0 methanol: l acetate: Suppose a beaker of methanol is put inside a sealed tank containing methanol gas at 59. degree C and 876. torr. After ten minutes, will there be more liquid in the beaker, less liquid, or the same amount? more less the same

Explanation / Answer

Since volatility and boiling point are related concepts we first try to answer the boiling point of each compound.

to determine the boiling point through temprature vs vapour pressure curves,

we know that a substance boils when its vapour pressure is equal to atmospheric pressure so, we draw a line where vapour pressure is 760 mm hg or 760.000108 torr, where this line will intersect the curve at that point the temprature represent the boiling point of compound.

Now answering question,

clearly most Volatile is Methanol

Least Volatile is isopropyl acetate

Normal boiling point

methanol-65oC

cyclo hexane-81oC

isopropyl acetate-89oC

Since atmospheric pressure is more than vapour pressure at 59oC so gas cools down and thus more liquid is found in container.

Related Questions

Navigate

• Browse (All)
• Browse 8
• Subjects

---

---

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