please it is a chemical reaction so use chemical engineering methods all the ither answers here are make no sense

A gas phase reaction is preformed, A+BC. This reaction is preformed isothermally for flow reactor. Feed to the reactor is 70%A and 30%B, the reactor is at a pressure of 5atm and a temperature of 200C. You may assume that this system behaves as an ideal gas, R=0.0821.atm /mol.K a) At conversion of 85%B, calculate concertation of A,B and C in the system? b) If you assume that the rate constant K is 40V (mole. s), write the reaction rate solely as a function of conversion for the flow reactor? c) Repeat part b for a batch reactor