Chemical Engineering - Heat Transfer - Discussion

5. 

Pick out the wrong statement.

[A]. Bubble size increases with the dynamic viscosity of the liquid in case of nucleate pool boiling.
[B]. Thermal conductivity of a dry material is more than that of the damp material.
[C]. Ratio of its capacity to economy equals the steam consumption in kg/hr in an evaporator.
[D]. Vaporisation of organic substances in evaporator mostly causes foam formation.

Answer: Option B

Explanation:

No answer description available for this question.

Mayuri Katariya said: (Jan 22, 2014)  
When a material, for instance insulating material, becomes wet, the air enclosures fill with water and, because water is a better conductor than air, the conductivity of the material increases.

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