A rotameter is calibrated to measure water flow rates between 60 l/h and 600 l/h. The diameter of the rotameter conic tube at the inlet of the liquid is of D n = 20 mm and the density of the float is...

A rotameter is calibrated to measure water flow rates between 60 l/h and 600 l/h. The diameter of the rotameter conic tube at the inlet of the liquid is of D_n
= 20 mm and the density of the float is of ρ_f
= 800 kg/m³. How does the scale of the rotameter change when it is used for measuring the flow rates of sulfuric acid with concentration of C = 530 g/l? The sulfuric acid concentration-density is presented in Tab. 7.3. It is assumed that both liquids have the same viscosity.