A mixture of 65 mol% methanol(A) and 35 mol% water(B) is fed to a flashdrum with the feed rate of 50 kmol/hr. The amount of vapor product comingout at the top of the drum is 32 kmol/hr. Given aAB = 4.8.(i)Determine the composition of the vapor and liquid products.(ii)Determine how the feed rate affect the vapor concentration if thefraction of the feed that is vaporize, f remained unchanged. Justify byproviding the operating line of this system.(b)A treated ore containing inert solid gangue and copper sulfate (CUSO4) is to beleached in a countercurrent single stage extractor using pure water as solvent.The solid charge rate per hour is 2000 kg that consists of 82% of inert gangue,12% of CuSO4, and 6% of water. A total of 95% of the CuSO4 in the inlet oreis to be recovered. Calculate the amount and composition of overflow leavingstreams if equal amount of solvent is used. Assume N for the slurry underflowis constant.

Given: Feed to the flash drum is F = 50 kmol/hr, The feed composition of methanol is xfm = 0.65 or…

Answered: A mixture of 65 mol% methanol(A) and 35…

Introduction to Chemical Engineering Thermodynamics

8th Edition

ISBN:9781259696527

Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Chapter1: Introduction

Section: Chapter Questions

Problem 1.1P

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A gas mixture at 300K and 1 bar analyzing by volume 20% N2 and 80% CH4 is subjected to liquefaction at the rate of 1500 kg/hr. It is found that only 30% (weight) of the entering gas is liquefied and the concentration of N2 in the liquid is 60% by weight. The unliquefied gas leaves the unit at 273K and 1 bar. Show the process flow diagram and determine (a) the volume of the unliquefied gas, m3 /hr (b) the composition of the gas leaving expressed as volume %.
P4
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Water containing 0.5 Kg/L of salt is pumped into a tank at a rate of 2L/min, and the well-stirred mixture leaves at the same rate. After 10 min, the process is stopped and fresh water is pumped into the tank at a rate of 2L/min, with the new mixture leaving at 2L/min. Determine the amount (Kg) of salt in the tank at the end of 20 min if the tank initially contained 100L of pure water.
Please don't provide handwritten solution.
8
Use the information in Tables 2D.1 and 2E.1 to calculate the energy that must be transferred as heat to melt 100 g of ice at 0 °c, increase the sample temperature to 100 °c, and then vaporize it at that temperature. Sketch a graph of temperature against time on the assumption that the sample isheated at a constant rate.
4) For workers in closed spaces, it is a great danger to consuming the breathable air (oxygen) and replacing it with carbon dioxide (CO₂) is great danger issue. In order to avoid breathing this harmful gas, closed areas should be adequately ventilated. There is no specific standard for the air exchange rate. However, a complete freshening of air every 2.5 minutes has been accepted by the industry as effective ventilation. A worker maintains a rectangular tank with a height of 10 ft and a 5 ft x 5 ft square bottom. Fresh air enters through a 6-inch diameter hose and exits through a 3-inch diameter port on the tank wall. The flow is assumed to be incompressible and steady. Determine, a) The exchange rate required (ft³/min) for this tank. b) The velocity of the air entering and exiting the tank at this exchange rate.

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