assuming water molecules in the gas phase act as an ideal gas, how many times greater is the rms speed of water molecules in the gas phase at the bolling temperature of water compared to the freezing temperature of water.

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- Aug 16th 2006, 10:33 AMCeliaassuming water molecules
assuming water molecules in the gas phase act as an ideal gas, how many times greater is the rms speed of water molecules in the gas phase at the bolling temperature of water compared to the freezing temperature of water.

- Aug 16th 2006, 12:42 PMCaptainBlackQuote:

Originally Posted by**Celia**

of the molecules. Therefore the absolute temperature is proportional to the

mean square speed of the water molecules, so

$\displaystyle

\frac{373}{273}=\frac{v_{T=100,\ rms }^2}{v_{T=0,\ rms}^2}

$,

from which the ratio of the rms speeds can be found.

RonL