Molecules in a solid are held in nearly fixed positions by strong attractive forces. Therefore, they do not have the freedom of movement that molecules in liquids or gases have, making them harder. They also do not transfer heat to their neighbors by convection because they are not free to move around. However, they do have internal energy because they vibrate around their fixed positions.

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Molecules in a Solid

Question 20

Multiple Choice

Molecules in a solid

A) are harder than molecules in liquids or gases.
B) transfer heat to their neighbors by a process called convection.
C) have no internal energy because they are not moving around.
D) are held in nearly fixed positions by strong attractive forces.

Correct Answer: