(a) Compare the thermal conductivities and thermal diffusivities of air and water at 100F. (b) Calculate the...
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(a) Compare the thermal conductivities and thermal diffusivities of air and water at 100°F.
(b) Calculate the penetration distances in a stagnant mass of air and one of water, at 50°F and 1 atm, each of which is exposed for 10 s to a hot metal surface at 100°F. Comment on the difference.
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Property Air 100F Water 100F Thermal conductivity k 0016 WmK 068 WmK Thermal diffusivity 220 x 105 ms 0143 x 105 ms Penetration distance 0015 m 0004 m ...View the full answer
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Related Book For 
Unit Operations Of Chemical Engineering
ISBN: 9780072848236
7th Edition
Authors: Warren McCabe, Julian Smith, Peter Harriott
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