The molar enthalpies of streams B and C can be calculated from (3)H˜mix=x1H˜1+x2H˜2+ΔH˜mix=1.596x1+1.591x2+x1x2[−53.531+20.869(x1−x2)]To calculate the weight fraction of sulfuric acid in stream C, first it is necessary to write the overall material balance as (...