THe air is made up of many gases and aerosols, including water vapour.

$($a$)$ Determine the molar mass of a waver vapour molecule.

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$($b$)$Determine the RMS speed of water vapour molecules held at a temperature of $15\mathrm{.}5$ deg C and pressure of $1\mathrm{.}00$ bar.

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$($c$)$ Taking the mean free path of an air molecule in these conditions as $56\mathrm{.}04$ nm$,$ determine the mean free time of a water vapour molecule in the air.

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Answer rating: 100% (QA)

To answer these questions well need to make use of the concepts of molar mass the root mean square R... View the full answer