QUESTION 2 A fluid flows through a pipe having an inside diameter of 5cm at a flow rate of 4.00kg/s. The fluid enters the pipe at 500K and is heated to 505K. The heat flux is kept constant and the pipe wall temperature is kept at 30K above the fluid bulk temperature. Calculate the required tube length. The physical properties of the fluid are given in Table 1. [20] Table 1: Physical properties of fluid