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1. |
The film co-efficient is decreased due to the presence of non-condensing gases in the vapors. The film co-efficient of superheated vapor as compared to that of saturated vapor is |
A. | more |
B. | less |
C. | some |
D. | either more or less ; depends on the nature of vapor |
Answer» D. either more or less ; depends on the nature of vapor | |