It is desired to concentrate a 20% salt solution ( kg of salt in 100 kg of solution) to a 30% salt solution in an evaporator. Consider a feed of 300 kg/min at 30°C. The boiling point of the solution is 110°C, the latent heat of vaporisation

• A. 6.12 x 105
• B. 3.06 x l05
• C. 9.08 x 105
• D. 7.24 x 105