The capacity of a vessel is $3$ litres. It contains $6 \,gm$ oxygen, $8\, gm$ nitrogen and $5\, gm$ $C{O_2}$ mixture at $27°C.$ If $R = 8.31\, J/mole$ $ \times $ $kelvin,$ then the pressure in the vessel in $N/{m^2}$ will be (approx.)
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