1. Which one of the following is true?
A. London forces do not exist between molecules of
dimethylamine, (CH3)2NH
B. increasing the pressure above a liquid increases its boiling
point
C. the surface of hexane, C6H14, in a glass tube will be a
u-shaped meniscus
D. a water drop will spread out and “wet” a surface of
polyethylene
E. amorphous solids have a well defined melting point
2. A scientist measured the vapor pressure of a substance at
various temperatures...