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Kindly answer this asap!!! It is planned to increase the concentration of a colloidal solution containing solids from 15% to 55% at a feed rate

Kindly answer this asap!!!

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It is planned to increase the concentration of a colloidal solution containing solids from 15% to 55% at a feed rate of 2500g/s with an operating pressure of 18kPa at the second effect. The feed enters at 102C with a specific heat of 3750J/kgK. The boiling point rise of the concentrated liquor is 6C and the steam fed to the first effect is at 240kPa. Determine the heat transfer area if the overall heat transfer in the first and second effects are 1800W/m2K and 630W/m2K, respectively

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