Repeat Problem 7.40 for a tube bank in which all of the tubes are spaced with their centerlines 7.5 cm apart.From Problem 7.40: Determine the average heat transfer coefficient for air at 60?C flowing at a velocity of 1 m/s over a bank of 6-cm-OD tubes. The tubewall temperature is 117?C.GIVENAir flow through a tube bankTube spacing (S) = 7.5 cm = 0.075 mAir temperature (Ta) = 60?CAir velocity (Us) = 1 m/sTube outside diameter (D) = 6 cm = 0.06 mTube wall temperature (Tw) = 117?CASSUMPTIONSSteadystate

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7.5 cm 7.6 cm Tw-117°C Alr U=1 m/s Ta = 60°C (Not to Scale)