$3.$ An engineer has developed a condenser operating under a steady flow condition as shown below. Water enters the condenser as saturated vapor at a pressure of $150$ kPa and a mass flow rate of $\backslash (3\mathrm{.}6\backslash$mathrm$\{$~kg$\}/\backslash$mathrm$\{$hour$\}\backslash ).$ The water exits from the condenser at a temperature of $\backslash (25^\{\backslash$circ$\}\backslash$mathrm$\{$C$\}\backslash )$ and a pressure of $150$ kPa $.$ Heat is transferred from the condenser to the surrounding air. The surrounding air is at a temperature of $\backslash (20^\{\backslash$circ$\}\backslash$mathrm$\{$C$\}\backslash ).$ The condenser involves no work. Neglect the changes in the kinetic energy and potential energy. Determine

a$.$ The rate of heat transfer from the condenser to the surrounding air;

b$.$ The rate of total entropy generation during the process