At 0°C and 760 mm pressure, the densities of N2 and O2 gases are 14 and 16 respectively. Calculate the temperature(centigrade) at which O2 will have the same density as of N2 at 0°C if pressure remains constant.
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answer is 39.
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Detailed Solution
PV =WMRT PM=d RT dN2 = dO2 ;[P] [R] ∴ MN2T1=MO2T2; 16×273=14×T2 T2 =312 K =312-273 =39° CT2=312K or 312−273=39∘C