(2 pts) A boiler receives feedwater at a flow rate of
5000k(g)/(h)
, a pressure of 5 MPa , and a temperature of
20\deg C
. It heats the water such that the flow exits the boiler at a pressure of 4.5 MPa and a temperature of
450\deg C
. Determine the necessary minimum inlet pipe area and the minimum exit pipe area so no flow velocities are larger than
20(m)/(s)
.