Chemical Heat Transfer

A. Increases
B. Decreases
C. Remain same
D. Decreases linearly

A. Lower heat transfer area
B. Lower steam economy
C. Higher steam economy
D. Higher solute concentration in the product

A. Square pitch
B. Triangular pitch
C. Diagonal square pitch
D. None of these

A. Kirchoff’s
B. Planck’s
C. Wien’s displacement
D. Stefan-Boltzmann

A. Highest in last effect
B. Lowest in last effect
C. Same in all effects
D. Dependent on the number of effects

A. Nu = 0.023 Re0.8. Pr0.4
B. Nu = (π/2) Gz
C. Nu = (2/π) Gz
D. Nu = 2Gz0.5

A. Heat flux
B. Nusselt number
C. Prandtl number
D. Schmidt number

A. Increasing temperature of the vapour
B. Decreasing temperature of the vapour
C. Increasing viscosity of the film of condensate
D. Increasing temperature drop

A. Increases
B. Decreases
C. Remain same
D. First increases upto a certain temperature and then becomes constant

A. Once
B. Twice
C. Thrice
D. Four times