Air enters a 15-m-long, 75-mm-diameter insulated duct at a velocity of 90 m/s, a pressure of 200 kPa, and a temperature of 127◦C. The average friction factor in the duct is estimated as XXXXXXXXXXIf...

Air enters a 15-m-long, 75-mm-diameter insulated duct at a velocity of 90 m/s, a pressure of 200 kPa, and a temperature of 127◦C. The average friction factor in the duct is estimated as 0.020. If the length of the duct is increased to 30 m, will the mass flow rate through the duct be affected? If so, what is the percentage change in the mass flow rate?