You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: Exercise2.m
    path of file: ./repos/Matlab4CRE/practicals/2018-2019/practicals07
    
    the code of the file until where you have to start completion: %-------------------------------------------------------------------------%
%
    
function dY = TowerCoCurrent(V,Y)

    global pTot;    % total pressure [Pa]
    global Ctot;    % total concentration [kmol/m3]
    global FtotG;   % total molar flow rate (gas) [kmol/s]
    global FtotL;   % total molar flow rate (liquid) [kmol/s]
    global b;       % stoichiometric coefficient B
    global c;       % stoichiometric coefficient C

    pA = Y(1);      % partial pressure of A in gaseous phase [Pa]
    CB = Y(2);      % concentration of B in liquid phase [kmol/m3]
    
    [r] = OverallRateOfChange(pA, CB);      % [kmol/m3/s]
        
    dpA = -pTot/FtotG*r;                    % [Pa/m3]
    dCB = -Ctot/FtotL*b*r;                  % [kmol/m3/m3]
    dCC =  Ctot/FtotL*c*r;                  % [kmol/m3/m3]

    dY = [dpA dCB dCC]';

end