At `27^(@)C` a gas under a pressure of 750 mm Hg occupies a volume of 76 ml. Calculate the volume of the gas at N.T.P.

Explanation

Here according the question
`P_(1)=750mm`
`V_(1)=76ml`
`T_(1)=27^(@)C =27+273 =300K`
`P_(2)=1"atm"=760"mm " :. ` of NTP
`T_(2)=0^(@)C = 273K`
`V_(2)=?`
Now `(P_(1)V_(1))/(T_(1))=(P_(2)V_(2))/(T_(2)) rArr V_(2) = (750 xx 76 xx 273)/(300 xx 760) " " V_(2) = 68.25 ml`.