In a surface condenser if air is removed, there is___________?
Correct answer: A. fall in absolute pressure maintained in condenser
- A. fall in absolute pressure maintained in condenser
- B. rise in absolute pressure maintained in condenser
- C. no change in absolute pressure in the condenser
- D. rise in temperature of condensed steam
Explanation
Air entering a condenser raises its partial pressure and opposes condensation; removing it lowers the total absolute pressure and improves the vacuum. The condensed-steam temperature correspondingly tends to fall rather than rise.
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