A pipe with a diameter of 10 cm carries nitrogen with a velocity of 10 m/s and specific volume 5 m3/kg into a chamber. Surrounding the pipe, in an annulus of outer diameter 20 cm, is a flow of hydrogen entering the chamber at 20 m/s with a specific volume of 1 m3/kg. The mixing chamber operates at steady state with a single exit of diameter 5 cm. If the velocity at the exit is 62 m/s, determine:
(a) The mass flow rate in kg/s at the exit.
(b) The specific volume of the mixture at the exit in m3/kg.
(c) The apparent molar mass in kg/kmol of the mixture at the exit.