In a closed container containing both a volatile liquid and its vapor, no more m
ID: 920850 • Letter: I
Question
In a closed container containing both a volatile liquid and its vapor, no more molecules can cross the liquid vapor interface once equilibrium is established. At the summit of Mt. Rainier (4,392 m), would the boiling point of water be greater than, less than, or equal to its normal boiling point, and why? Assuming the liquids are neat, fill in the blanks below by entering the correct letter to rank the liquids in the table in order of increasing boiling point: Fill in the blanks below by entering the correct letter to rank liquids in the table in order of decreasing strength of intermolecular forces: Write the names of the three possible intermolecular forces in liquids in the blanks below to rank those intermolecular forces in liquids in order of decreasing relative strength: In an open container, what effect, if any, does evaporation have on the temperature of a liquid?Explanation / Answer
31. When equilibrium is reached, no more molecules crosses the intererface.
32. With increase in elevation, pressure decreases and so boiling point will decrease.
33-37. Boiling point is inversely proportional to vapor pressure, so order is:
A < E < B < C < D
38-42. Vapor pressure decreases with increase in intermolecular forces, so the order is:
D > C > B > E > A
43-45. Hydrogen bonding (water) > dipole-dipole (acetaldehyde) > dispersion (freon 113)