Two tanks (A and B) are connected together by a small pipe which contains a valve.
Initially the valve is closed and tank A, which has a volume of 1 m3 contains air
at a pressure of 6 atm and a temperature of 60C. Tank B contains a mixture of
nitrogen and oxygen (95 mol% N2) at 12 atm pressure and 90C .
The valve is then opened and the contents of the two tanks mix. After complete
mixing has taken place, the mixed gas contains 85 mol% N2. Calculate the volume
of tank B.
Consider that air contains 79 mol% nitrogen and 21 mol% oxygen and that the
volume of any gas at 273 K and 1 atm is 22.414 m3 kmol1 - alternatively, 1 atm
= 101.325 kPa, R = 8.3143 kJ kmol1 K1.