Question

when air is removed in a surface condenser​

Answer 1

Answer:

The prevention of leakage of air in the surface condenser is difficult because of the presence of the high vacuum in the condenser. (2) The air leakage results in lowering the partial pressure of the steam and temperature. This naturally results into increase in latent heat and hence more cooling water is required.

Explanation:

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Answer 2

Explanation:

we can not remove air from in surface