Mercury at $25C$ flows over a $3\mathrm{.}2-m-$long and $2-m-$wide flat plate maintained at $75C$ with a velocity of $0\mathrm{.}8\frac{m}{s}.$ Determine the rate of heat transfer from the entire plate.

The properties of mercury at the film temperature of $\frac{75+25}{2}=50C$ are $k=8\mathrm{.}83632\frac{W}{m}*C,v=1\mathrm{.}056{10}^{-7}\frac{m^2}{s},Pr=0\mathrm{.}0223$

The rate of heat transfer from the entire plate is kW$.$

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