Chemical Heat Transfer

A. Decreased capacity
B. Increase in liquor film co-efficient
C. Decreased effect of hydrostatic head
D. Increased true temperature drop

A. D/5 and D
B. D/2 and 2 D
C. D/4 and 2 D
D. D and 2 D

A. When heat transfer area required is very high
B. When heat transfer area required is very low, i.e. (100-200 ft2).
C. Because it occupies less floor area
D. Because it is less costly

A. Zero
B. Unity
C. Same for all wavelengths
D. Different for all wavelengths

A. 0
B. 1
C. > 1
D. Between 0 and 1

A. Rate of heat transfer
B. Degree of turbulence
C. Degree of super-saturation
D. All A., B. and C

A. Film
B. Sub-cooled
C. Saturated nucleate
D. None of these

A. Single effect evaporator
B. Single effect evaporator followed by a crystalliser
C. Multiple effect evaporator
D. Multiple effect evaporators followed by a crystalliser

A. CP. μ/k
B. hD/k
C. h. CP/μ
D. CP. μ/h

A. Geometric mean temperature difference
B. Arithmetic mean temperature difference
C. Logarithmic mean temperature difference
D. The difference of average bulk temperatures of hot and cold fluids