1.

On a certain day the vapour pressure is 14 mm of Hg for water vapour in air at 20^@C . The saturated vapour pressure is 17.5 mm. How many moles of water vapour per litre of air would be required to saturate air at this temperature ?

Answer»

`9.41 XX 10^(-4) `
`9.14 xx 10^(-4)`
`1.914 xx 10^(-4) `
`4.19 xx 10^(-4)`

ANSWER :C


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