Heat Transfer
Multiple effect evaporators are commonly used in the manufacture of P. Paper Q. Superphosphate R. Sugar S. Fats

P and Q
P and S
R and S
P and R

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Heat Transfer
Prandtl number is the ratio of

Thermal diffusivity to momentum diffusivity
Thermal diffusivity to mass diffusivity
Momentum diffusivity to thermal diffusivity
Momentum diffusivity to mass diffusivity

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