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Consider the following statements (i) If a condensing liquid does not wet a surface, then drop wise condensation will not take place on it (ii) Drop wise condensation gives a higher transfer rate than film wise condensation (iii) Reynolds number of condensing liquid is based on its mass flow rate (iv) Suitable coating or vapor additive is used to promote film wise condensation Identify the correct statement
Which are the correct statements? (a) Film condensation usually occur on oily surface. (b) Temperature of condensate gradually increases towards the liquid-vapour interface. (c) Suitable coating is used to promote dropwise condensation. (d) Dropwise condensation gives lower heat transfer rate than film condensation.
Statement 1: Film-type condensation has a higher heat transfer co-efficient than drop-wise condensation. Statement 2: Drop-wise condensation is easier to maintain than Film-type condensation
Identify the correct set.  Set Physical Changes Chemical Changes A Ozone formation from Oxygen, Condensation Rusting, Burning of candle B Evaporation, Alloy formation Rusting, Curd formation C Condensation, Evaporation Combustion, Galvanization D Galvanization, Alloy formation Crystallization, Condensation
Which row of the following table correctly matches the terms with the respective processes of state-change?   Change of State   Gas to liquid Liquid to solid Solid to liquid 1. Condensation Melting Solidification 2. Condensation Solidification Melting 3. Evaporation Melting Solidification 4. Evaporation Solidification Melting
Condensation is one of the processes in water cycle. Which of the following statements is TRUE about condensation?
The heat transfer co-efficient in film type condensation is __________ that for dropwise condensation.
For condensation of pure vapors, if the heat transfer co-efficients in filmwise and drop-wise condensation are respectively hf and hd, then
There’s only 1 category for types of polymerization reactions utilized to form polymers: condensation mechanism to form condensation polymers.
Statement 1: Drop-wise condensation takes place on a smooth surface. Statement 2: All the resistance to heat transfer lies in the film formed during Film-type condensation.