The graph between logxm vs log p is given below:

What is the value of the slope?

1. 12n

2. n

3. 1n

4.1n2

Subtopic:  Adsorption Isotherm |
 91%
Level 1: 80%+

To unlock all the explanations of this course, you need to be enrolled.

Hints
Links

To unlock all the explanations of this course, you need to be enrolled.


In the Freundlich adsorption isotherm, the value of 1/n is:
1. Between 0 and 1 in all cases.
2. Between 2 and 4 in all cases.
3. 1 in the case of physical adsorption.
4. 1 in the case of chemisorption.

Subtopic:  Adsorption Isotherm |
 91%
Level 1: 80%+
AIPMT - 2012

To unlock all the explanations of this course, you need to be enrolled.

Hints
Links

To unlock all the explanations of this course, you need to be enrolled.


An adsorption isotherm is a plot between:

1. The extent of adsorption \(({x \over m})\) against the pressure of gas (P) at constant V.
2. The extent of adsorption \(({x \over m})\) against the pressure of gas (P) at constant T.
3. The extent of absorption \(({x \over m})\) against the volume of gas (V) at constant P.
4. The extent of absorption \(({x \over m})\) against the pressure of gas (P) at constant T.
Subtopic:  Adsorption Isotherm |
 80%
Level 1: 80%+

To unlock all the explanations of this course, you need to be enrolled.

Hints
Links

To unlock all the explanations of this course, you need to be enrolled.


advertisementadvertisement

The equation that represents a Freundlich adsorption isotherm is: 

1. xm=kp0.3

2. xm=kp2.5

3. xm=kp-0.5

4. xm=kp-1

Subtopic:  Adsorption Isotherm |
 71%
Level 2: 60%+
NEET - 2019

To unlock all the explanations of this course, you need to be enrolled.

Hints
Links

To unlock all the explanations of this course, you need to be enrolled.


The correct curve for Freundlich's adsorption isotherm is:

1.  2.
3. 4.
Subtopic:  Adsorption Isotherm |
 64%
Level 2: 60%+

To unlock all the explanations of this course, you need to be enrolled.

Hints
Links

To unlock all the explanations of this course, you need to be enrolled.


Consider the following graph between xm (extent of adsorption) and pressure:

What is the correct relation between T1, T2, and T3

1. T3 <  T2  > T1
2. T1 < T2  < T3
3. T1 > T2  > T3
4. None of the above

Subtopic:  Adsorption Isotherm |
 68%
Level 2: 60%+

To unlock all the explanations of this course, you need to be enrolled.

Hints

To unlock all the explanations of this course, you need to be enrolled.


advertisementadvertisement

According to Freundlich adsorption isotherm, at high pressure, the value of xm is - 

1. Directly proportional to the pressure.

2. Inversely proportional to the pressure.

3. Directly proportional to the square of the pressure.

4. Independent of the pressure.

Subtopic:  Adsorption Isotherm |
 60%
Level 2: 60%+

To unlock all the explanations of this course, you need to be enrolled.

Hints
Links

To unlock all the explanations of this course, you need to be enrolled.


In an adsorption experiment, a graph between log(x/m) versus log P was found to be linear with a slope of 45°. The intercept on the y-axis was found to be 0.3. What will be the value of x/m at a pressure of 3 atm for the Freundlich adsorption isotherm when 1/n remains constant?

[Antilog 0.3 = 2]

1.  2

2.  4

3.  6

4.  5

Subtopic:  Adsorption Isotherm |
Level 3: 35%-60%

To unlock all the explanations of this course, you need to be enrolled.

Hints

To unlock all the explanations of this course, you need to be enrolled.