The minimum liquid rate to be used in an absorber corresponds to an operating line

If G = insoluble gas in gas stream and L = non-volatile solvent in liquid stream, then the slope of the operating line for the absorber is

A

$$\frac{{\text{L}}}{{\text{G}}}$$

B

$$\frac{{\text{G}}}{{\text{L}}}$$

C

Always

D

None of these

For a single component absorber, the operating line is straight only when plotted in term of __________ units.

A

Partial pressure

B

Mole ratio

C

Mole fraction

D

None of these

The slope of the operating line for a single component co-current absorber when plotted in terms of mole ratio units is

A

0

B

∞

C

-ve

D

+ve

The operating line for an absorber is curved, when plotted in terms of

A

Mole fractions

B

Mole ratios

C

Partial pressure

D

Mass fractions

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

A

- ve

B

+ ve

C

1

D

-1

For an absorber, both equilibrium and operating line will be straight for

A

Concentrated solution and non-isothermal operation

B

Dilute solution and non-isothermal operation

C

Dilute solution and isothermal operation

D

Concentrated solution and isothermal operation

In case of an absorber, the operating

A

Line always lies above the equilibrium curve

B

Line always lies below the equilibrium curve

C

Line can be either above or below the equilibrium curve

D

Velocity is more than the loading velocity

For the same system, if the same liquid used in an absorber is decreased, the tower height will

A

Increase

B

Decrease

C

Remain unaffected

D

Decrease or increase ; depends on the type of liquid

On moving the feed line (q-line) from saturated liquid feed (vertical position) to saturated vapor feed (horizontal feed), if the slope of both the operating lines are to be increased, then it will result in

A

Greater degree of separation with a fixed number of trays

B

Increased reboiler load

C

Increased reflux ratio

D

None of these

The minimum armature current of the synchronous motor corresponds to operation at

A

zero power factor leading

B

unity power factor

C

0.707 power factor lagging

D

0.707 power factor leading

The minimum liquid rate to be used in an absorber corresponds to an operating line

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