Question: 1 - 7 Cold air at 1 0 C flows across the outer surface of a 1 . 5 - c m OD tube. The

1-7 Cold air at 10 C flows across the outer surface of a 1.5-cm OD tube. The surface of the
tube is kept at a constant temperature of 120 C. If the convective coefficient between the
outer surface of the tube and the air is 70Wm2C, what is the convective heat transfer per
meter length of tube (Wm)?
1 - 7 Cold air at 1 0 C flows across the outer

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