Mass Transfer
In case of absorption, both the operating and equilibrium lines will be straight for

Dilute solutions
Dilute solutions and isothermal operation
None of these
Isothermal operation

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Mass Transfer
An example of elutioh is

Recovery of vegetable oils from seeds
Separation of sugar from sugar beet by hot water
Dissolution of tannin out of tree barks by water
Separation of uranium oxide from its ore by H₂SO₄ in a Pachuca tank

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Mass Transfer
A coalescer in a mixer-settler liquid-liquid extraction coloumn

Helps in increasing the bubble size entering the settler
Helps in increasing the settling rate of the bubbles
Comprises of thin bed of substances of extended surface having high porosity
All of these

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