In a battery of three$-$effect evaporators, juice is concentrated; it does not present an appreciable elevation in the boiling point. The absolute pressure of the heating vapor entering the first effect is $270$ kPa, and the boiling temperature of the solution in the last effect is $70\backslash$deg C$.$ The overall heat transfer coefficients are $1300,1200$ and $1100$

W$/$m$^2\backslash$deg C$,$ for the $1$st$,2$nd$.$ and $3$rd effect, respectively. At what temperatures will the liquid boil in each of the evaporators?

lbf$/$in$^2=6894\mathrm{.}7573$ Pa

Note: Use Chemical Logic Steam Tab