Pick out the correct statement about the condensation.

Question

Options:

A . Filmwise condensation gives a lower heat transfer rate than the dropwise condensation

B . Suitable coating or vapour additive is used to promote film wise condensation

C . If a condensing liquid does not wet the surface dropwise, even then condensation will take place on it

D . Reynolds number of condensing liquid is based on its mass flow rate

Answer: Option B

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