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AP® Physics 1 & 2

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Moderate

Molecular Speed: Heating at Constant Volume

APPH12-KKGEYB

Heat is quickly added to an enclosed cylinder of gas so that the pressure increases from 1.0 atmosphere to 3.0 atmospheres. The volume of the cylinder is kept constant.

What happens to the rms speed of the gas molecules after this addition of heat?

A

Increases by a factor of $\sqrt{ 3 }$

B

Increases by a factor of 3

C

Increases by a factor of 9

D

The rms speed is not related to the pressure of the gas