Chemical Heat Transfer

A. Coated
B. Oily
C. Glazed & polished
D. Smooth

A. 0.35
B. 0.45
C. 0.55
D. 0.85

A. K/h0
B. 2K/h0
C. h0/K
D. h0/2K

A. Same velocity profile or equal eddy diffusivities
B. Thermal or pressure mass diffusion
C. Viscous heating or chemical reaction
D. Both B. and C.

A. 4000
B. 9000
C. 4600
D. 3000

A. There is no internal heat generation
B. Boundary surfaces are isothermal
C. Material is anisotropic
D. Constant temperature gradient exists

A. Increasing temperature
B. Decreasing temperature
C. Decreasing Reynolds number
D. None of these

A. Increase the steam economy & decrease the capacity
B. Increase the steam economy & the capacity
C. Decrease the steam economy & the capacity
D. Decrease the steam economy & increase the capacity

A. Graetz number
B. Eckert number
C. Grashoff number
D. Bond number

A. Parallel
B. Counter
C. Cross
D. None of these