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2. Air at 70°C (p=1.23 kg/m³; k = 0.02735 W/m.k; v = 1.802 x 10-³ m²/s; Cp = 1005 J/kg.K) flows over a 14-m-long and 3-m-wide surface of a plate whose temperature is 16°C with a velocity of 5.3 m/s. The rate of heat transfer along the laminar flow region of the surface is: [2 Marks]

Air at $70_{∘}C(ρ_{s}=1.23kg/m_{3};k=0.02735W/m.k;v=1.802×10_{−5}m_{2}/s;C_{p}=1005$ $J/kg.K)$ flows over a $14−m$-long and $3−m$-wide surface of a plate whose temperature is $16_{∘}C$ with a velocity of $5.3m/s$. The rate of heat transfer along the laminar flow region of the surface is: [ 2 Marks]

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