Steam Is Accelerated by a Nozzle Steadily from a Low

Multiple Choice

Steam is accelerated by a nozzle steadily from a low velocity to a velocity of 220 m/s at a rate of 1.2 kg/s. If the steam at the nozzle exit is at 300°C and 2 MPa, the exit area of the nozzle is

A) 6.8 cm²
B) 7.2 cm²
C) 3.8 cm²
D) 54.6 cm²
E) 22.8 cm²