(I don\'t think you need an experiments to answer this question.) In both experi

Question

(I don't think you need an experiments to answer this question.)

In both experiments, what accounts for the change in pressure you observed as you changed the volume of the gas?

A. When a gas is in a larger volume, the molecules have more space and bump into the walls of the flask more, thereby exerting a greater pressure.

B. When a gas is in a smaller volume, the molecules are more confined and bump into the walls of the flask more, thereby exerting a greater pressure.

C. When a gas is in a smaller volume, the molecules have more space in the flask, thereby exerting a smaller pressure.

D. The volume of the gas does not accoutn for the cahnges in the pressure

Explanation / Answer

Option (B)

When volume is decreased lesser space is available for molecules to move and therefore frequency of collision with the walls of the flask increases which in turn increases the pressure exerted.

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