A closed tank contains kerosene (RD = 0.8) to a depth of 2.5 m. The top portion of the tank contains

A closed tank contains kerosene (RD = 0.8) to a depth of 2.5
m. The top portion of the tank contains air under a pressure of 25 kPa. If a
sharp edged circular orifice of diameter 3 cm (Cd = 0.61) is
provided at the bottom of the tank, estimate the discharge through the orifice.