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En una celda de Arnold con un rea uniforme transversal de 0 . 8 c m 2 se evapora Metanol ( p = 7 9

En una celda de Arnold con un rea uniforme transversal de 0.8cm2 se evapora Metanol (p=791kg/m3y MA=32kg/kmol). En un principio, la superficie del metanol estaba a 10cm de la parte superior del tubo; despus de un rato, la superficie del metanol estaba a 26cm de la parte superior del tubo. La presin de vapor del metanol es 17kPa y la concentracin del metanol es de cero en la parte superior del tubo. Si todo el proceso se oper a 25C y 1atm, La difusividad de masa del metanol en el aire es DAB=0.162cm2s
A) Determine la razn de evaporacin del metanol en kgh.(10%)
B) Calcule tiempo en el que se evapor la altura mencionada de la celda mediante un balance pseudo-estacionario (20%)
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