Chemical Heat Transfer

A. Minimum
B. Maximum
C. Zero
D. Infinity

A. In the central core of the fluid
B. Uniformly distributed throughout the fluid
C. Mainly confined to a thin film of fluid near the surface
D. None of these

A. Thermal boundary layer lies inside the concentration boundary layer
B. Concentration boundary layer lies inside the thermal boundary layer
C. Thermal & concentration boundary layers are of equal thickness
D. Hydrodynamic (i.e., momentum) boundary layer is thicker than the other two

A. Conduction
B. Radiation
C. Condensation
D. Natural convection

A. 0
B. 1
C. > 1
D. < 1

A. Stefan-Boltzmann’s
B. Planck’s
C. Wien’s displacement
D. None of these

A. Low density
B. High viscosity
C. Partial ionisation
D. Dense structure

A. Transient heat conduction
B. Natural convection
C. Forced convection
D. Radiation

A. Absorbs
B. Reflects
C. Transmits
D. None of these

A. Increases rapidly with temperature rise
B. Is almost independent of temperature
C. Is almost independent of pressure
D. Both B. and C