Which of the following statements concerning molecules in the liquid state is true?
A)Cohesive forces are not important.
B)The molecules contract to fit the size of the container.
C)The molecules have no motion.
D)The molecules are in a patterned (oriented)arrangement.
E)The molecules are mobile and relatively close together.

Question

Quizplus · Accepted Answer

In the liquid state, molecules are mobile and relatively close together, but they are not in a patterned (oriented) arrangement like in a crystal. Cohesive forces are important in the liquid state, as they allow the molecules to stick together and create the surface tension that we observe in liquids. The molecules do not contract to fit the size of the container, as they are already in contact with each other and exert a pressure that depends on their density and temperature. It is also not true that the molecules have no motion, as they vibrate and rotate around their positions, and can also slide past each other to some extent.

Which of the Following Statements Concerning Molecules in the Liquid