Amixture containing 45 wt% benzene and 55 wt% toluene is fed to a
distillation column. an overhead stream of 95 wt% benzene is
produced, and 8.0 % of the benzene fed to the column leaves in the
bottom stream. the feed rate is 2,000 kg/hr. determine the overhead
mass flow rate and mass flow rates of benzene and toluene in the
bottom stream. what is the molar flow rate of the feed stream to
the column?

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented

The higher the astm grain size number, the finer the gran is. a)-true b)-false