Pick out the wrong statement about nucleate boiling?

7980Chemical EngineeringMedium

ASurface temperature is greater than the saturation temperature of the liquid

BHeat transfer from the surface of the liquid is less than that in film boiling

CThe temperature is less than that of film boiling

DBubble generation is by expansion of entrapped gas/vapour at small cavities in the surface

Correct answer

C. The temperature is less than that of film boiling

Explanation

The correct answer is The temperature is less than that of film boiling.

Related Chemical Engineering MCQs

View all 8342 MCQs →

MCQ #7982

Sphericity for a non-spherical particle is given by (where, V and S are volume and surface area respectively of one particle. and, D = equivalent diameter of particle)?

Ans: 6.V/D.SRead →

MCQ #7978

Air enters an adiabatic compressor at 300K. The exit temperature for a compression ratio of 3, assuming air to be an ideal gas (Y = Cp/Cv = 7/5) and the process to be reversible, is________?

Ans: 300 × (32/7)Read →

MCQ #7983

Check valve provided in the discharge line of a centrifugal pump serves the purpose of controlling the________?

Ans: Back flow of fluid in the event of stoppage of pumpRead →

MCQ #7977

Water separometer index (modified) (WSIM) of a petrofuel is the measure of its________?

Ans: Water separation characteristicsRead →

MCQ #1723

Gibbs-Helmholtz equation is________?

Ans: ΔF = ΔH + T [∂(ΔF)/∂T]PRead →

MCQ #3809

The decrease in the atomic number is not observed in case of________?

Ans: β-emissionRead →