Author Question: From the graph in Figure 5.1, p. 78, estimate the following: (a) the boiling point of acetone at ... (Read 72 times)

j.rubin · **on:** Aug 23, 2018

From the graph in Figure 5.1, p. 78, estimate the following:
(a) the boiling point of acetone at 625 mm Hg
(b) the vapor pressure of acetone at room temperature (23C)
(c) the percent of the total pressure contributed by acetone above an open beaker of this compound at room temperature (23) and 760 mm

Question 2

If a mixture is distilled rapidly, the separation of its components is poorer than if the mixture is
distilled slowly. Explain.

jliusyl · **Reply #1 on:** Aug 23, 2018

Answer to Question 1

(a) 60-65
(b) 225 mm Hg
(c) (225 mm/760 mm) x 100 = about 30

Answer to Question 2

The added heat and excess vapors prevent an equilibium between liquid and gas. Large quantities of the higher-boiling compounents will distill in the early fractions.