Answer the following questions using Figure 11.12:
(a) What is the equilibrium vapor pressure of diethyl ether at room temperature (approximately 20°C)?
(b) Place the three compounds in Figure 11.12 in order of increasing intermolecular forces.
(c) If the pressure in a flask is 400 mm Hg and if the temperature is 40°C, which of the three compounds (diethyl ether, ethanol, and water) are liquids, and which are gases?

Data given in Figure 11.12

Transcribed Image Text:

Pressure (mm Hg) 1000 800 600 400 200 0 760 mm Hg -20⁰ Diethyl ether 0⁰ 20⁰ Normal BP 34.6 °C Ethanol 40⁰ Temperature (°C) 60° Normal BP 78.3 °C 80⁰ Normal BP 100 °C 100⁰ 120°