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One thousand liters of a 95 wt% glycerol-5% water solution is to be diluted to 60% glycerol by adding a 35% solution pumped from a large storage tank through a 5-cm ID pipe at a steady rate. The pipe discharges at a point 23 m higher than the liquid surface in the storage tank. The operation is carried out isothermally and takes 13 mm to complete. The friction loss (P of Equation 7.7-2) is 50 J/kg. Calculate the final solution volume and the shaft work in kW that the pump must deliver, assuming that the surface of the stored solution and the pipe outlet are both at 1 atm. Data. PH2O = 1.00 kg/L, Pgly = 1.26 kg/L. (Use to estimate solution densities.)
determine the time for the moisture to penetrate to the center of the slab (2 in. from either face). Assume a diffusivity of water in the wood as 8.3?10?6 cm2/s.
what is the optimum operating reaction temperature at a conversion level , xa = 0.8 given- K1 = exp ( 10 -5000/T) K2 = exp ( 40 - 15000 /T) and maximum allowable temperature = T = 300 ok
Calculate the material and energy balances and perform an entropy analysis of the mixing point, the heat exchanger, and of the entire process. The heat capacities of methane and carbon monoxide are CPA = 40.8 J/mol K, and CPB = 29.4 J/mol K, r..
Continuous Stirred Tank Reactor (CSTR) : Flow rate and Reactor Volume, The liquid phase reactions
Calculate the instantaneous and rms values of the voltage induced in a 150-turn coil on the armature, if the axial length of the armature and its inner diameter are both 100 mm.
Assume the amount of radioactivity is the same in each case. Explain your answer on the basis of the chemical properties of Sr and Xe. Why are the chemical properties of a radioactive substance important in assessing its potential health hazards?
Be sure to allow sufficient time for equipment sizing, costing, and optimization. What intermediate deliverables would you specify to ensure that the project stays on track?
Of the entering methane, 70% burns to carbon dioxide and 30% burns to carbon monoxide. What volumetric flow rate of fuel gas is required if there are no heat losses to the surroundings?
If 2.00 MNaOH is available, how would the student prepare the solution? To help insure three significant figures in the NaOH molarity, to how many significant figures should the volumes and mass be determined?
the reaction rates of all the elementary reactions of type (ii) in a weakly realistic mechanism are linear functions of all the concentrations separately.
The gases enter the condenser at 230 °C and leave at 50 °C. The cooling water enters the tubes at 20 °C and leaves at 50 °C. Suggest suitable materials of construction for the shell and the tubes.
Homogeneous function- Question -1 A Differential equation of the form, dy/dx = f(x,y)/?(x,y) Where f(x,y) and ?(x,y) are homogeneous function of same degree.
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