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A teacher uses several marbles in a flat rectangular container to illustrate concepts of gas behavior. The marbles in the container act as a model of an ideal gas.

Which of the following statements correctly describes how this model does not fully show the nature of an ideal gas?

A

The container should be tilted to one side to show how gravity keeps most of the gas molecules near the bottom of the container.

B

The marbles are much too big. The volume of the gas molecules is negligible compared to the volume occupied by the gas.

C

The marbles should attract each other to because gas molecules have significant gravitational attraction to one another.

D

The marbles should not be allowed to collide off each other. An ideal gas has such small density that the molecules only hit the walls, never each other.

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