PLEASE HELP!! a 100kmol/h stream that is 97 mol% carbon tetrachloride (CCI 4) molecular weight equal to 154, and 3 mol% carbon disulfide (CS2) molecular weight of 76, is to be recovered from the bottom of the distillation column. The feed to the column is 16% mol carbon disulfide and 84 mol% carbon tetrachloride and 22% of the chloride tetrachloride entering the column in contained in the overhead steam leaving the top column

Liquid flows at steady state at a rate of 2 lb/'s through a pump, which operates to raise the elevation of the liquid 100 ft from control volume inlet to exit. the liquid specific enthalpy at the inlet is 40.09 btu/lb and at the exit is 40.94 btub. the pump requires 3 btu/s of power to operate. if kinetic energy effects are negligible and gravitational acceleration is 32.174 tt/s, the heat transfer rate associated with this steady state process is most closely 1)-2,02 btu/s from the liquid to the surroundings 2)-3.98 btu/s from the surroundings to the liquid. 3)-4.96 btu/s from the surroundings to the liquid. 4)-1.04 btu/s from the liquid to the surroundings.