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Mass Transfer

Mass Transfer
Ordinary diffusion process is also called __________ diffusion.

Concentration
Forced
Pressure
Thermal

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Mass Transfer
When both the fluids flow concurrently in an absorber, the slope of the operating line is

-1
1
+ ve
- ve

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Mass Transfer
Raoult's law is applicable to the

Non-ideal gases
Real solutions
Mixture of water and alcohol
Ideal solutions

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Mass Transfer
The dimension of diffusivity is same as that of the

Velocity head
Density
Kinematic viscosity
Molal concentration

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Mass Transfer
The adiabatic saturation curve for a vapour-gas mixture is

Slightly concave upward
None of these
Slightly concave downward
Straight line

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Mass Transfer
The velocity, concentration and temperature boundary, for the boundary layer development on a flat plate during connective mass transfer will be same, if

NSc = NLe
NPr = NLe
NSc = 1
NSc = NPr = NLe

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