Step 1: Understand the Forces.
The force due to pressure and shear in the direction normal to the flow primarily contributes to the lift, particularly in aerodynamic contexts.
Step 2: Definition of Lift.
Lift is the component of the aerodynamic force that is perpendicular to the flow direction. It contrasts with drag, which is parallel to the flow direction.

The first-order irreversible liquid phase reaction \(A \to B\) occurs inside a constant volume \(V\) isothermal CSTR with the initial steady-state conditions shown in the figure. The gain, in kmol/m³·h, of the transfer function relating the reactor effluent \(A\) concentration \(c_A\) to the inlet flow rate \(F\) is:
