Oil flowing at the rate of $)=(2\mathrm{.}09kJ{C}^{-1}k{g}^{-1}$ is cooled in a concentric tube heat exchanger from $366\mathrm{.}5K$ to $3443K$ by water. The flow rate of water is $2\mathrm{.}02k\frac{g}{s})=(2\mathrm{.}2kJ{C}^{-1}k{g}^{-1}$ and it is entering at $283\mathrm{.}2K.$ The overall heat transfer coefficient is $(340+T)W{C}^{-1}{m}^{-2}.$ What is the correrponding area required for the co current arrangement? Assume that no heat is lost to or gained from the surrounding. What is the value of heat exchanger effectiveness? $($T is the last digit of your student ID muber$)$

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