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				| 1. | The temperature profile at a particular location on a surface is prescribed by the identity(t s – t) / (t s – t infinity) = (1/2) (y/0.0075) 3 + (3/2) (y/0.0075)If thermal conductivity of air is stated to be 0.03 W/m K, determine the value of convective heat transfer coefficient | 
| A. | 4 W/m2 K | 
| B. | 5 W/m2 K | 
| C. | 6 W/m2 K | 
| D. | 7 W/m2 K | 
| Answer» D. 7 W/m2 K | |