The reaction A► B is to be carried out isothermally

The reaction A► B is to be carried out isothermally in a continuous flow reactor.
Calculate both the CSTR and PFR reactor volume necessary using mole balance eqn to consume
99% of A when the entering molar flow rate is 5 mol/h. assuming the reaction rate -rA is:
-rA = k ; k= 0.05 mol/h.dm3
-rA = kCA;k= 0.0001 /s
(c ) -rA = kCA2 ; k= 3 dm3/mol.hr
The entering volumetric flow rate is 10 dm3/h
(d) Repeat a, b, c to calculate the time necessary to consume 99.9% of species A in a 1000 dm3
constant volume batch reactor with CA0= 0.5 mol/dm3.