Plug-flow reactor online simulator

$$a_1A_1+a_2A_2+...+a_{N_{A}}A_{N_A}\to b_1B_1+b_2B_2+...+b_{N_{B}}B_{N_B}$$

where:
a_i - stoichiometric coefficient for substrate A_i
b_i - stoichiometric coefficient for product B_i