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Can you please solve this question with clear steps and answer, its a very important question for my exam. A double - effect evaporator is

Can you please solve this question with clear steps and answer, its a very important question for my exam. A double-effect evaporator is used to concentrate 10,000 kg/h of caustic soda solution from 9% to
47% by wt. NaOH. For this purpose, a backward feed arrangement is used. The feed enters the
evaporator at 309 K. Process steam at 787.941 kPa (442.7K,2048.7 kJ/kg) is available and in the
second effect a pressure of 14.665 kPa (326.3K,2377.8 kJ/kg) is maintained. First evaporator is
maintained at 401.303kPa(143.73C,2132.98 kJ/kg). Calculate the heating surface area in both the
effects. Calculate the steam consumption and evaporation in each effect. Neglect boiling point rise.
The overall heat transfer coefficients in the first and second effects are 2326 and 1744.5 W/(m2
K),
respectively. Take a specific heat of 3.77 kJ/(kgK), for all caustic streams.

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