a simple rectifying column consists of a tube arranged vertically and supplied at the

a simple rectifying column consists of a tube arranged vertically and supplied at the bottom with a mixture benzene and toluene as vapour. at th top a condenser returns some of the product as a reflux which flows in a thin film down the inner wall of the tube. the tube is insulated and heat losses can be neglected. at one point in the column the vapour 70 mol% benzene and the adjacent liquid reflux contains 59 mol% benzene. the temperature at this point is 365 k. assuming the diffusional resistance of a stagnant vapour layer 0.2 mm thick calculate the rate of interchange of benzene and toluene between vapour and liquid. the molar latent heats of the two materials can be taken as equal. the vapour pressure of toluene at 365 k is 54kn/m^2 and the diffusivity of the vapours is 0.051 cm^2/s

بدون اسمGoogle إجابات-التعليم الجامعي-المواقع والبرامج-الكمبيوتر والإنترنت-الكيمياء


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