$2.(30$ points$)100$ mol$/$s of n$-$pentane $(60\backslash$deg C$,1$ atm$)$ passes through a heat exchanger. While in the heat exchanger, $3,250$ kW of heat are removed from the n$-$pentane. Assume pressure is constant.Determine the temperature $(\backslash$deg C$)$ of the n$-$pentane leaving the heat exchanger.