Vacuum is generally maintained in the vapour space of an evaporator ma

1.	Vacuum is generally maintained in the vapour space of an evaporator mainly to
A.	get economical temperature difference by using moderate pressure steam.
B.	facilitate forward feeding in multiple effect evaporation.
C.	concentrate heat sensitive materials.
D.	achieve very high concentration of the final product.
Answer» B. facilitate forward feeding in multiple effect evaporation.

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Vacuum is generally maintained in the vapour space of an evaporator mainly to

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