Ahot gas stream containing reactant a (2 lit/min, 2 atm, 6770k, 1/6 a and 5/6 inerts) and a cold gas stream consisting of pure b (0.5 lit/min, 1.95 atm, 3300k) flow into a mixed flow reactor (0.75 lit) kept at 4400k and 1.3 atm where a and b react as follows a + 2b > 6r -ra = k cacb

the partial pressure of a in the reactor and in the exit stream is 0.02899 atm. from this information determine:
the fractional conversion of a and of b in the reactor.
the rate constant (m3/mole. min) of the reaction.