It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%).

Mass Transfer
It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%).

51 min

15 min

71 min

94 min

51 min

15 min

71 min

94 min

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Mass Transfer
The vapour pressure exerted by the moisture contained in a wet solid depends upon the

Nature of the solid

All of these

Temperature

Nature of the moisture

Nature of the solid

All of these

Temperature

Nature of the moisture

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Mass Transfer
Positive deviation from Raoult's law means a mixture whose total pressure is

Less than the sum of the vapour pressure of the components

None of these

Less than that computed for ideality

Greater than that computed for ideality

Less than the sum of the vapour pressure of the components

None of these

Less than that computed for ideality

Greater than that computed for ideality

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Mass Transfer
HETP is numerically equal to HTU, only when the operating line

Is far from the equilibrium line

Lies below the equilibrium line

And equilibrium lines are parallel

Lies above the equilibrium line

Is far from the equilibrium line

Lies below the equilibrium line

And equilibrium lines are parallel

Lies above the equilibrium line

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Mass Transfer
For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG:mass transfer co-efficient, mols/m² , a: in-terfacial area per unit volume of tower)

L/(FG.G)

FG/(G.a)

(G.a)/FG

F/(FG.a)

L/(FG.G)

FG/(G.a)

(G.a)/FG

F/(FG.a)

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Mass Transfer
With increase in temperature, the leaching rate increases because of the

None of the listed here

Decreased viscosity of liquid

Increased diffusivity

Both Decreased viscosity of liquid & Increased diffusivity

None of the listed here

Decreased viscosity of liquid

Increased diffusivity

Both Decreased viscosity of liquid & Increased diffusivity

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Mass Transfer

Mass Transfer It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%).

Mass Transfer The vapour pressure exerted by the moisture contained in a wet solid depends upon the

Mass Transfer Positive deviation from Raoult's law means a mixture whose total pressure is

Mass Transfer HETP is numerically equal to HTU, only when the operating line

Mass Transfer For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG:mass transfer co-efficient, mols/m² , a: in-terfacial area per unit volume of tower)

Mass Transfer With increase in temperature, the leaching rate increases because of the

Mass Transfer
It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%).

Mass Transfer
The vapour pressure exerted by the moisture contained in a wet solid depends upon the

Mass Transfer
Positive deviation from Raoult's law means a mixture whose total pressure is

Mass Transfer
HETP is numerically equal to HTU, only when the operating line

Mass Transfer
For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG:mass transfer co-efficient, mols/m² , a: in-terfacial area per unit volume of tower)

Mass Transfer
With increase in temperature, the leaching rate increases because of the