As a diligent engineer you remember that, for a gas phase reaction, the volumetric flow rate is not always constant between a reactor inlet and outlet. Moreover you remember the expression that describes this behavior fits one of these forms: V = V.(1 + EX) v = vo(1+cho ex) 00) D()() cation v = v(1 + EX) v = v.(1 tex) Circle the correct form of the equation and then explain a conceptual check you can use to verify your