A raw juice is subject to flash distillation. The juice is heated in a heat exchanger and then flashes in

a vacuum vessel. There is no phase change in heat exchanger. If heat at a rate of $270,000$ kJ$/$h is

transferred to the heat exchanger, calculate

a$).$ The temperature of the juice at the exit of the heat exchanger

b$).$ The amount of overhead$/$flashed vapor and finished juice leaving the vacuum vessel

The following data are given: flow rate and temperature of the solution at the inlet of the heat

exchanger is $1000$ kg$/$h and $50$oC$,$ specific heat capacity of the solution is $3\mathrm{.}8$ kJ$/$kg oC$,$ and the

absolute pressure in the vacuum vessel is $70\mathrm{.}14$ KPa.