Category: Chemical Heat Transfer

A. 25°C
B. 30°C
C. 35°C
D. 40°C

A. Is inversely proportional to the resistance across which the drop occurs
B. And the wall are proportional to individual resistances
C. And the wall is not related
D. None of these

A. In drying a solid containing moisture above the critical moisture content the number of degrees of freedom is 2
B. Sherwood number in mass transfer corresponds to Nusselt number in heat transfer and Schmidt number to Prandtl number
C. Forced convection is relatively more effective in increasing the rate of mass transfer, if Schmidt number is larger
D. Hot gases at moderate pressure are usually in the shell side of shell and tube heat exchangers. At higher pressure, however, it is customary to put gas in the tube side

A. Eddies current
B. Conduction
C. Convection
D. None of these

A. Gases
B. Solids
C. Liquids
D. Both B. and C.

A. Increased
B. Decreased
C. No effect on
D. None of these

A. Heat balance consideration
B. Rate of heat transfer
C. Both A. and B.
D. Neither A. nor B.

A. t4
B. T4
C. 1/t4
D. 1/T4

A. Loosing sensible heat
B. Heat transfer to surroundings
C. Vaporisation due to heat loss to air
D. Loosing latent heat

A. Strouhal number
B. Sherwood number
C. Euler number
D. Grashoff number